[EVRAC]

Yes, I know, the subject has been done to death but:

Gearbox bikes - changing the future of bicycle design.

Is the era of the rear-derailleur almost over? With viable alternatives being developed by such companies as Honda, Nicolai, GT, Evil, Be-One and Hayes, one might hope so.

Please help me by taking a few minutes to fill out this survey on the subject of gearbox bikes. Just copy the body of this survey into a reply and fill it out. This is an assignment for a course I am taking called “Research Methods” and is credit towards my “Bachelor of Technology in Manufacturing” degree. I am also a CNC machinist and gearbox-bike nut. I am hoping to create a working prototype of a multi-speed gearbox for my final degree project, so your input could help shape the future of bicycle design.


1 ) How many rear derailleurs or derailleur hangers have you bent or broken in the past year?
[ ]


2) How many times has your chain skipped, miss-shifted, jammed or fallen off in the past year?
[ ]


3) How much extra would you be willing to spend to get a bike with a gearbox?
[ $ ]

4) How much extra weight would you be willing to add to your bike for a gearbox?
[ lbs]

5) Considering that some people ride single-speed, what is the minimum number of gears that you would find acceptable in a gearbox bike? [ ]

The following questions deal with shifting gears:

6) Would you value the ability to shift under heavy pedalling load? [Y/N]

7) Would you find it acceptable if you had to stop pedalling to shift? [Y/N]

8) Would you value the ability to shift while standing still? [Y/N]



Please feel free to offer any other advice, opinions or comments:




Thank you so much for your time,
Stephen McMillan

 

[BMXman]

1 ) How many rear derailleurs or derailleur hangers have you bent or broken in the past year?
2


2) How many times has your chain skipped, miss-shifted, jammed or fallen off in the past year?
0


3) How much extra would you be willing to spend to get a bike with a gearbox? depends on design

4) How much extra weight would you be willing to add to your bike for a gearbox?
2 lbs

5) Considering that some people ride single-speed, what is the minimum number of gears that you would find acceptable in a gearbox bike? depends on application: 9/DH and FR, 14/XC

The following questions deal with shifting gears:

6) Would you value the ability to shift under heavy pedalling load? Y

7) Would you find it acceptable if you had to stop pedalling to shift? N

8) Would you value the ability to shift while standing still? Y

Now all this being said....when I ownd a Nicolai Nucleon I never had any problems with the G-Boxx and I really liked the system. The ONLY reason I sold it was due to weight. If Karl came out with a G-boxx bike that could be reasonably built under 44lbs. I would be all over it. I know it's just a matter of time though...D

 

[Nately27]

Yes, I know, the subject has been done to death but:


1 ) How many rear derailleurs or derailleur hangers have you bent or broken in the past year?
[ 4 ]


2) How many times has your chain skipped, miss-shifted, jammed or fallen off in the past year?
[ 20 ]


3) How much extra would you be willing to spend to get a bike with a gearbox?
[ $ 500 ]

4) How much extra weight would you be willing to add to your bike for a gearbox?
[ 4 lbs]

5) Considering that some people ride single-speed, what is the minimum number of gears that you would find acceptable in a gearbox bike? [ 8]

The following questions deal with shifting gears:

6) Would you value the ability to shift under heavy pedalling load? [Y]

7) Would you find it acceptable if you had to stop pedalling to shift? [N]

8) Would you value the ability to shift while standing still? [Y]



best of luck, derek

 

[ÆX]

i'll bite. this is usefull info for me too.
i had a guy call the other day wanting last years inedible,
not next year new cogbox. i told him i am no longer selling
it and the cog box will be 10x the bike. he still didn't want
one.

so, there are a few people that thing the der is still the best,


1 ) How many rear derailleurs or derailleur hangers have you bent or broken in the past year?
[ 0 ]


2) How many times has your chain skipped, miss-shifted, jammed or fallen off in the past year?
[ 2 ]


3) How much extra would you be willing to spend to get a bike with a gearbox?
[ $ 800 ]

4) How much extra weight would you be willing to add to your bike for a gearbox?
[ 0 lbs]

5) Considering that some people ride single-speed, what is the minimum number of gears that you would find acceptable in a gearbox bike? [ 4 with the same range as 9 ]

The following questions deal with shifting gears:

6) Would you value the ability to shift under heavy pedalling load? [Y essential]

7) Would you find it acceptable if you had to stop pedalling to shift? [N]

8) Would you value the ability to shift while standing still? [Y essential]



Please feel free to offer any other advice, opinions or comments:

good luck on coming up with the next best design.
you will find out it takes many protos to get what you want.
keep at it. start earlly and work fast.




No, Thank you so much for your time,

alex morgan

maker of the first gearbox dh bike and the best next years bike!

oo i am sooo excited

 

[motomike]

1 ) How many rear derailleurs or derailleur hangers have you bent or broken in the past year?
[ 4 derailleurs, no hangers ]


2) How many times has your chain skipped, miss-shifted, jammed or fallen off in the past year?
[ 1 ]


3) How much extra would you be willing to spend to get a bike with a gearbox?
[$500]

4) How much extra weight would you be willing to add to your bike for a gearbox?
[2lbs max]

5) Considering that some people ride single-speed, what is the minimum number of gears that you would find acceptable in a gearbox bike? [ 6 ]

The following questions deal with shifting gears:

6) Would you value the ability to shift under heavy pedalling load? [Yes]

7) Would you find it acceptable if you had to stop pedalling to shift? [absolutely not]

8) Would you value the ability to shift while standing still? [It'd be cool, but not a neccesity]

 

[spacemanspiff06]

1 ) How many rear derailleurs or derailleur hangers have you bent or broken in the past year?
derailleurs: 7 hangers:3


2) How many times has your chain skipped, miss-shifted, jammed or fallen off in the past year?
lost count of skiping(rode a bad casette for a month). never realy jamed or fell off.


3) How much extra would you be willing to spend to get a bike with a gearbox?
[ $500] for the right gearbox

4) How much extra weight would you be willing to add to your bike for a gearbox?
[2lbs]

5) Considering that some people ride single-speed, what is the minimum number of gears that you would find acceptable in a gearbox bike? [7, with the range of a 2x9]

The following questions deal with shifting gears:

6) Would you value the ability to shift under heavy pedalling load? [Y]

7) Would you find it acceptable if you had to stop pedalling to shift? [N]

8) Would you value the ability to shift while standing still? [Y]

 

[RaID]

1 ) How many rear derailleurs or derailleur hangers have you bent or broken in the past year?
[ 2 ]


2) How many times has your chain skipped, miss-shifted, jammed or fallen off in the past year?
[ dont keep track but enough times]


3) How much extra would you be willing to spend to get a bike with a gearbox?
[ $300 ]

4) How much extra weight would you be willing to add to your bike for a gearbox?
[ 4 lbs]

5) Considering that some people ride single-speed, what is the minimum number of gears that you would find acceptable in a gearbox bike? [ 8 ]

The following questions deal with shifting gears:

6) Would you value the ability to shift under heavy pedalling load? [Y/N]yes

7) Would you find it acceptable if you had to stop pedalling to shift? [Y/N]no

8) Would you value the ability to shift while standing still? [Y/N]
yes

Please feel free to offer any other advice, opinions or comments:

the ratios should be relatively close unlike the nexus hubs

easy of maintenamce



Thank you so much for your time,

 

[scottishmark]

Wow, first time i've come across another uni that does something like my Manufacturing engineering and technology course!

anyway:

1 ) How many rear derailleurs or derailleur hangers have you bent or broken in the past year?
[ 0]


2) How many times has your chain skipped, miss-shifted, jammed or fallen off in the past year?
[ 8]


3) How much extra would you be willing to spend to get a bike with a gearbox?
[ $400 ]

4) How much extra weight would you be willing to add to your bike for a gearbox?
[0 lbs]

5) Considering that some people ride single-speed, what is the minimum number of gears that you would find acceptable in a gearbox bike? [27xc, 8 dh ]

The following questions deal with shifting gears:

6) Would you value the ability to shift under heavy pedalling load? [Y/N] Y

7) Would you find it acceptable if you had to stop pedalling to shift? [Y/N] N

8) Would you value the ability to shift while standing still? [Y/N] Y



Please feel free to offer any other advice, opinions or comments:

 

[Zark]

1 ) How many rear derailleurs or derailleur hangers have you bent or broken in the past year?
[2]


2) How many times has your chain skipped, miss-shifted, jammed or fallen off in the past year?
[0 ]


3) How much extra would you be willing to spend to get a bike with a gearbox?
[ $500 ]

4) How much extra weight would you be willing to add to your bike for a gearbox?
[1 lbs]

5) Considering that some people ride single-speed, what is the minimum number of gears that you would find acceptable in a gearbox bike? [10]

The following questions deal with shifting gears:

6) Would you value the ability to shift under heavy pedalling load? [Y]

7) Would you find it acceptable if you had to stop pedalling to shift? [N]

8) Would you value the ability to shift while standing still? [N]

 

[BigMike]

1 ) How many rear derailleurs or derailleur hangers have you bent or broken in the past year?
[ 4]


2) How many times has your chain skipped, miss-shifted, jammed or fallen off in the past year?
[ 10]


3) How much extra would you be willing to spend to get a bike with a gearbox?
[ $100 ]

4) How much extra weight would you be willing to add to your bike for a gearbox?
[3 lbs]

5) Considering that some people ride single-speed, what is the minimum number of gears that you would find acceptable in a gearbox bike? [18 ]

The following questions deal with shifting gears:

6) Would you value the ability to shift under heavy pedalling load? [Y]

7) Would you find it acceptable if you had to stop pedalling to shift? [N]

8) Would you value the ability to shift while standing still? [Y]

 

[Eurotrash]

1 ) How many rear derailleurs or derailleur hangers have you bent or broken in the past year?
[2 ]


2) How many times has your chain skipped, miss-shifted, jammed or fallen off in the past year?
[ 10+]


3) How much extra would you be willing to spend to get a bike with a gearbox?
[ 500$ ]

4) How much extra weight would you be willing to add to your bike for a gearbox?
[ 3lbs]

5) Considering that some people ride single-speed, what is the minimum number of gears that you would find acceptable in a gearbox bike? [ 9]

The following questions deal with shifting gears:

6) Would you value the ability to shift under heavy pedalling load? [Y/

7) Would you find it acceptable if you had to stop pedalling to shift? [N]

8) Would you value the ability to shift while standing still? [Y/]

 

[nmjb]

1 ) How many rear derailleurs or derailleur hangers have you bent or broken in the past year?
[5]


2) How many times has your chain skipped, miss-shifted, jammed or fallen off in the past year?
[ ~10]


3) How much extra would you be willing to spend to get a bike with a gearbox?
[ 500$ ]

4) How much extra weight would you be willing to add to your bike for a gearbox?
[ 1 lbs]

5) Considering that some people ride single-speed, what is the minimum number of gears that you would find acceptable in a gearbox bike? [ 8 for DH]

The following questions deal with shifting gears:

6) Would you value the ability to shift under heavy pedalling load? [Y]

7) Would you find it acceptable if you had to stop pedalling to shift? [N]

8) Would you value the ability to shift while standing still? [Y]

 

[DH biker]

1 ) How many rear derailleurs or derailleur hangers have you bent or broken in the past year?
[ 4]


2) How many times has your chain skipped, miss-shifted, jammed or fallen off in the past year?
[ too many to count---I would say well over 100]


3) How much extra would you be willing to spend to get a bike with a gearbox?
[ $300 ]

4) How much extra weight would you be willing to add to your bike for a gearbox?
[ 1-2lbs]

5) Considering that some people ride single-speed, what is the minimum number of gears that you would find acceptable in a gearbox bike? [ 6]

The following questions deal with shifting gears:

6) Would you value the ability to shift under heavy pedalling load? [Y]

7) Would you find it acceptable if you had to stop pedalling to shift? [Yes in some cases---wide open race start = No]

8) Would you value the ability to shift while standing still? [Yes]

 

[Jayridesacove]

1 ) How many rear derailleurs or derailleur hangers have you bent or broken in the past year?
[0]


2) How many times has your chain skipped, miss-shifted, jammed or fallen off in the past year?
[20+]


3) How much extra would you be willing to spend to get a bike with a gearbox?
[$500]

4) How much extra weight would you be willing to add to your bike for a gearbox?
[3-4lbs]

5) Considering that some people ride single-speed, what is the minimum number of gears that you would find acceptable in a gearbox bike? [8]

The following questions deal with shifting gears:

6) Would you value the ability to shift under heavy pedalling load? [Y]

7) Would you find it acceptable if you had to stop pedalling to shift? [N]

8) Would you value the ability to shift while standing still? [Y]

 

[freakrock]

1 ) How many rear derailleurs or derailleur hangers have you bent or broken in the past year?
[ 0]


2) How many times has your chain skipped, miss-shifted, jammed or fallen off in the past year?
[ 10+]


3) How much extra would you be willing to spend to get a bike with a gearbox?
[ no more than 200 ]

4) How much extra weight would you be willing to add to your bike for a gearbox?
[ 1lbs]

5) Considering that some people ride single-speed, what is the minimum number of gears that you would find acceptable in a gearbox bike? [5 ]

The following questions deal with shifting gears:

6) Would you value the ability to shift under heavy pedalling load? [Y]

7) Would you find it acceptable if you had to stop pedalling to shift? [N]

8) Would you value the ability to shift while standing still? [Y]

 

[Dusty Bottoms]

Yes, I know, the subject has been done to death but:

Gearbox bikes - changing the future of bicycle design.

Is the era of the rear-derailleur almost over? With viable alternatives being developed by such companies as Honda, Nicolai, GT, Evil, Be-One and Hayes, one might hope so.

Please help me by taking a few minutes to fill out this survey on the subject of gearbox bikes. Just copy the body of this survey into a reply and fill it out. This is an assignment for a course I am taking called “Research Methods” and is credit towards my “Bachelor of Technology in Manufacturing” degree. I am also a CNC machinist and gearbox-bike nut. I am hoping to create a working prototype of a multi-speed gearbox for my final degree project, so your input could help shape the future of bicycle design.


1 ) How many rear derailleurs or derailleur hangers have you bent or broken in the past year?
[ 2 ]


2) How many times has your chain skipped, miss-shifted, jammed or fallen off in the past year?
[ 10+ ]


3) How much extra would you be willing to spend to get a bike with a gearbox?
[ $ 300 ]

4) How much extra weight would you be willing to add to your bike for a gearbox?
[ 0 lbs]

5) Considering that some people ride single-speed, what is the minimum number of gears that you would find acceptable in a gearbox bike? [ 12 ]

The following questions deal with shifting gears:

6) Would you value the ability to shift under heavy pedalling load? [Y]

7) Would you find it acceptable if you had to stop pedalling to shift? [N]

8) Would you value the ability to shift while standing still? [Y]



Please feel free to offer any other advice, opinions or comments:

Thank you so much for your time,
Stephen McMillan

I would not buy a gearbox if it came with grip shifters.

 

[nmjb]

I would not buy a gearbox if it came with grip shifters.

Same here- grip shifters would be a deal-breaker for me.

 

[joelsman]

1 ) How many rear derailleurs or derailleur hangers have you bent or broken in the past year?
[ 1 each ]


2) How many times has your chain skipped, miss-shifted, jammed or fallen off in the past year?
[ many miss or half shifts ]


3) How much extra would you be willing to spend to get a bike with a gearbox?
[ $ $400-800 ]

4) How much extra weight would you be willing to add to your bike for a gearbox?
[ 1 lbs]

5) Considering that some people ride single-speed, what is the minimum number of gears that you would find acceptable in a gearbox bike? [ 7 for dh, wide ratio 7 for fr, and 12-14 for xc ]

The following questions deal with shifting gears:

6) Would you value the ability to shift under heavy pedalling load? [Y]

7) Would you find it acceptable if you had to stop pedalling to shift? [N]

8) Would you value the ability to shift while standing still? [would be nice, even if you had to pedal backwards]






rapid fire or sram trigger style shifter would be nice also, ie: not grip shift.

 

[Thrillkil]

1 ) How many rear derailleurs or derailleur hangers have you bent or broken in the past year?
[ 0 ]


2) How many times has your chain skipped, miss-shifted, jammed or fallen off in the past year?
[ 2 ]


3) How much extra would you be willing to spend to get a bike with a gearbox?
[ $300 ]

4) How much extra weight would you be willing to add to your bike for a gearbox?
[ 2 lbs]

5) Considering that some people ride single-speed, what is the minimum number of gears that you would find acceptable in a gearbox bike? [ 7 ]

The following questions deal with shifting gears:

6) Would you value the ability to shift under heavy pedalling load? [Y]

7) Would you find it acceptable if you had to stop pedalling to shift? [N]

8) Would you value the ability to shift while standing still? [Y]

 

[bballe336]

1 ) How many rear derailleurs or derailleur hangers have you bent or broken in the past year?
[ 1 ]


2) How many times has your chain skipped, miss-shifted, jammed or fallen off in the past year?
[countless]


3) How much extra would you be willing to spend to get a bike with a gearbox?
[ $no more than the cost of a decent shifting system]

4) How much extra weight would you be willing to add to your bike for a gearbox?
[none/0lbs]

5) Considering that some people ride single-speed, what is the minimum number of gears that you would find acceptable in a gearbox bike? [8]

The following questions deal with shifting gears:

6) Would you value the ability to shift under heavy pedalling load? [no]

7) Would you find it acceptable if you had to stop pedalling to shift? [sort of]

8) Would you value the ability to shift while standing still? [yes]

 

[Metal]

1 ) How many rear derailleurs or derailleur hangers have you bent or broken in the past year?
[2 derailleurs, 2 hangers]


2) How many times has your chain skipped, miss-shifted, jammed or fallen off in the past year?
[5+]


3) How much extra would you be willing to spend to get a bike with a gearbox?
[$500]

4) How much extra weight would you be willing to add to your bike for a gearbox?
[3lbs]

5) Considering that some people ride single-speed, what is the minimum number of gears that you would find acceptable in a gearbox bike? [5 for a DH bike]

The following questions deal with shifting gears:

6) Would you value the ability to shift under heavy pedalling load? [Y]

7) Would you find it acceptable if you had to stop pedalling to shift? [N]

8) Would you value the ability to shift while standing still? [N- I really could care less]

 

[Tootrikky]

Yes, I know, the subject has been done to death but:

Gearbox bikes - changing the future of bicycle design.

Is the era of the rear-derailleur almost over? With viable alternatives being developed by such companies as Honda, Nicolai, GT, Evil, Be-One and Hayes, one might hope so.

Please help me by taking a few minutes to fill out this survey on the subject of gearbox bikes. Just copy the body of this survey into a reply and fill it out. This is an assignment for a course I am taking called “Research Methods” and is credit towards my “Bachelor of Technology in Manufacturing” degree. I am also a CNC machinist and gearbox-bike nut. I am hoping to create a working prototype of a multi-speed gearbox for my final degree project, so your input could help shape the future of bicycle design.


1 ) How many rear derailleurs or derailleur hangers have you bent or broken in the past year?
[ 8 ]


2) How many times has your chain skipped, miss-shifted, jammed or fallen off in the past year?
[ 40 ]


3) How much extra would you be willing to spend to get a bike with a gearbox?
[ $500 ]

4) How much extra weight would you be willing to add to your bike for a gearbox?
[ 2 lbs]

5) Considering that some people ride single-speed, what is the minimum number of gears that you would find acceptable in a gearbox bike? [ 7 ]

The following questions deal with shifting gears:

6) Would you value the ability to shift under heavy pedalling load?
[Y]

7) Would you find it acceptable if you had to stop pedalling to shift? [N]

8) Would you value the ability to shift while standing still? [Y]



Please feel free to offer any other advice, opinions or comments:

What about efficiency? isn't that one of the major setbacks of current sysyems?


Thank you so much for your time,
Stephen McMillan

yes no problem thank you for caring!

 

[mack]

1 ) How many rear derailleurs or derailleur hangers have you bent or broken in the past year?
[ 1 each ]


2) How many times has your chain skipped, miss-shifted, jammed or fallen off in the past year?
[ too many times to count ]


3) How much extra would you be willing to spend to get a bike with a gearbox?
[ $200-400 ]

4) How much extra weight would you be willing to add to your bike for a gearbox?
[ 2 lbs]

5) Considering that some people ride single-speed, what is the minimum number of gears that you would find acceptable in a gearbox bike? [ at least a 7 in a road casset ratio ]

The following questions deal with shifting gears:

6) Would you value the ability to shift under heavy pedalling load? [Y]

7) Would you find it acceptable if you had to stop pedalling to shift? [N]

8) Would you value the ability to shift while standing still? [would be cool, but not a nessesity]

 

[sk8kid33]

1 ) How many rear derailleurs or derailleur hangers have you bent or broken in the past year?
[ 6 hangers, 9 deraileurs ]


2) How many times has your chain skipped, miss-shifted, jammed or fallen off in the past year?
[ thousands]


3) How much extra would you be willing to spend to get a bike with a gearbox?
[ $1000]

4) How much extra weight would you be willing to add to your bike for a gearbox?
[ 3 lbs]

5) Considering that some people ride single-speed, what is the minimum number of gears that you would find acceptable in a gearbox bike? [ depends for what, jumping: 1 for dh I would say 7, for xc I would go 14-15]

The following questions deal with shifting gears:

6) Would you value the ability to shift under heavy pedalling load? [Y/N] YES

7) Would you find it acceptable if you had to stop pedalling to shift? [Y/N]
yes and no. it would be great for coasting corners and rock gardens to shift, but I want to be able to pedal and shift, why else have it shift under load.
8) Would you value the ability to shift while standing still? [Y/N]

Yes

 

[BMXman]

Same here- grip shifters would be a deal-breaker for me.

depends on the shifter...the Rohloff system is cool that you can mount it on either side of the bar and swap the cables around. That way you can decide which way you want to twist to shift up or down.

I use to have mine on the front brake side and set it so I down shifted rotating towards my brake lever. That way i could down shift and brake at the same time...D

 

[odiwik]

1 ) How many rear derailleurs or derailleur hangers have you bent or broken in the past year?
[ 0 ]


2) How many times has your chain skipped, miss-shifted, jammed or fallen off in the past year?
[ Once, when I didn't have my chainguide on during a test-fit. ]


3) How much extra would you be willing to spend to get a bike with a gearbox?
[ $200 ]

4) How much extra weight would you be willing to add to your bike for a gearbox?
[ 1 lb ]

5) Considering that some people ride single-speed, what is the minimum number of gears that you would find acceptable in a gearbox bike?
[ 7 ]

6) Would you value the ability to shift under heavy pedalling load?
[ Y ]

7) Would you find it acceptable if you had to stop pedalling to shift?
[ N ]

8) Would you value the ability to shift while standing still?
[ Y ]

Please feel free to offer any other advice, opinions or comments:
Get some advice and input from a professional Mechanical Engineer (not tech.).

 

[Bicyclist]

1 ) How many rear derailleurs or derailleur hangers have you bent or broken in the past year?
1


2) How many times has your chain skipped, miss-shifted, jammed or fallen off in the past year?
10

3) How much extra would you be willing to spend to get a bike with a gearbox?
[ $500 ]

4) How much extra weight would you be willing to add to your bike for a gearbox?
[2 lbs]

5) Considering that some people ride single-speed, what is the minimum number of gears that you would find acceptable in a gearbox bike? [7 ]

The following questions deal with shifting gears:

6) Would you value the ability to shift under heavy pedalling load? [Y, very much so!]

7) Would you find it acceptable if you had to stop pedalling to shift? [N, def. not]

8) Would you value the ability to shift while standing still? [sort of, but not a priority.]

 

[Alpha Kenny Body]

1 ) How many rear derailleurs or derailleur hangers have you bent or broken in the past year?
[ 3 ]


2) How many times has your chain skipped, miss-shifted, jammed or fallen off in the past year?
[ 300]


3) How much extra would you be willing to spend to get a bike with a gearbox?
[ $ 1000 ]

4) How much extra weight would you be willing to add to your bike for a gearbox?
[ 15 lbs]

5) Considering that some people ride single-speed, what is the minimum number of gears that you would find acceptable in a gearbox bike? [ 5 ]

The following questions deal with shifting gears:

6) Would you value the ability to shift under heavy pedalling load?
[Y

7) Would you find it acceptable if you had to stop pedalling to shift? [N]

8) Would you value the ability to shift while standing still? [Y/]