The Hardtail 'Frames and Geometry' thread

[brandonbmx1]

Here is my new aluminum staats mtx. The frame weighs only 3.9 lbs. The bike rides amazing. Here is the geometry from the website:


7005 MTX Small Medium
Top Tube 21" 22"
Rider Area 26.3" 27.5"
Chain Stay 16.25" 16.25"
BB Height 12.8" 12.8"
Head Angle 69* 69*
Seat Angle 70.5* 71*
Brake 26x1.95-2.25 26x1.95-2.25
Head Tube 1 1/8" 1 1/8"
Seat Post 27.2mm 27.2mm
Weight 3.9lbs 4.0lbs

I will try to take the measurements myself to verify the website. You may want to check out there website for measurement explanations, as they measure things a little differently. Rider area is basically the downtube length.

[buckoW]

here is my new 2009 Scott Voltage



The chainstays are 385mm
BB drop is -15mm
HA 69°
TT is just long enough to xup/barspin with 170mm cranks

[tmx]

Originally Posted by cmc

any 26's out there that are ultra short in the back, but XXL in the front, like a 23"tt ?

Not listed on the SuperCo site but there were some XL Charger's made with 23" TT.

edit: But now sold out. More will be made when the next batch heads into production later this year.

[one piece crank]

My current build, although no longer in production, possibly still available in Canada:

Banshee Scratch, large, below geometry for 24"x24" (also accepts 26"x26")
- Fork Travel: 3"
- Head Angle: 70°
- Seat Angle: 72°
- BB Height: 12.3" (312mm)
- Seat Tube: 16” (406mm)
- Top Tube: 23.5” (597mm)
- Max Tire Clearance: 24x3.0" (26" x 2.8")
- Rear Hub Spacing: 135mm
- Rear Axle Size: 14mm single-speed (adaptors included), 10mm multi-speed
- Chainstay: 15.75” - 17” (400- 432mm)
- Wheelbase: 41.9” (1064mm)
- Headset: 1.125"
- Seatpost Dia: 27.2mm
- BB: BMX (American BB)

Tom P.

[buckoW]

With the new single speed dropouts. I can run the rear slammed at 377mm or 14.8 inches.

[Weaver]

Originally Posted by buckoW

With the new single speed dropouts. I can run the rear slammed at 377mm or 14.8 inches.

where is this frame available?

[buckoW]

From a Scott dealer. It is the 2009 Voltage frame.

[davemo7]

14.8? looks pimp. is the seatpost built in?

[buckoW]

That was only for 3 proto frames. The production ones are with a normal style seatpost clamp.

[davemo7]

i dig the integrated seatpost

[Burnzy992]

My mates dmr transition, he asked me to post it for him. (due to no internet)
I love the frame geometry... Dont know it the exactly though.
One of the best bikes I've seen/riden.

Frame: Dmr transition
Weight
2.9Kg

Forks: Dmr Trail blades
20 mm i think.

[BlackedOutREVO]

Ok I just want to make sure on this

When you guys say run the rear slammed going off of bucko W's post he said 14.8 inches, where is that measurement taken from? And whats the advantage of running it slammed over not?

Thanks!

[buckoW]

Originally Posted by BlackedOutREVO

Ok I just want to make sure on this

When you guys say run the rear slammed going off of bucko W's post he said 14.8 inches, where is that measurement taken from? And whats the advantage of running it slammed over not?

Thanks!

It is measured from center of the axle to center of the bb. Mine is not slammed. The advantage of slammed is no need for a tensioner on normal style horizontal dropouts.

[Weaver]

23.5lbs
Avent Arson
I have a different fork (lighter 3 inch manitou R-7 with lockout) and stem (longer taller) on it now. only pic ive got for now:

http://picasaweb.google.com/lh/photo...eat=directlink

[Paulyd]

you guys are talking about frame angle, so i'll join in. hopefully you can give me a good recommendation. although yes i do ride more park, trails and dirt than trails, but i was looking at an aluminum frame with a head angle slightly steeper than an stp. i was thinking a banshee amp. i dont know why i dont want a cromo frame, but i was thinking either a black market mob, or a eastern black betty if anything. i want to have the ability to build up a light trail/fr hardtail, while still being able to run ss for street and such.