I ran a shimmed seatpost for years without a slip. Shims, when properly designed and fitted work fine.
Hadley does this, and they are ungodly expensive. I could own one of each rear standard for the cost of a hadley.hubs are my pet peeve. every company should make hubs that are convertible between 10-12/9-20 and make spacers for 135-150.
What about the current state of Bottom Brackets, looked good a little while ago when almost all manufacturers embraced the ISIS standard. Now that everyone has gone to external bearings on their BBs many are not interchangeable between brands !
yep, you loose wide flanges and dishless wheels.Spacers on a 135mm hub to make it 150mm negate the advantages of the wider hub standard. Spacers work fine for some applications (under compression beneath a stem) but they only work marginally in others (behind and aftermarket car wheel to compensate for offset).
last year i used a white brothers inverted with 120 spacing.If the disc rotor spacing was done correctly, someone could make a prototype of this using an old Shiver without too much hassle. Can one get spokes long enough to build such a wheel?
This reminds me of Seismic hubs (from Double Down). They were huge, but by using bigger hubs, they used shorter spokes and essentially allowed you to build a 24 or 26" wheel with angles similar to a 20" wheel. Has anyone on here ever used one?
It's true. I had a Risse wide front hub for two years, and it was fine.Just so you know, risse makes 120x20mm hubs standard for their forks. They actually work really well, and are dirtcheap.
Woah!!! Unless you're installing longer lugs, using spacers is a bad idea. Additionally, many OE wheels are hub-centric, and when you use spacers, it puts a greater load on the lugs instead of the hubs. Most aftermarket wheels are also lug-centric rather than hub-centric (although some are available in hub-centric sizes).Spacers on a 135mm hub to make it 150mm negate the advantages of the wider hub standard. Spacers work fine for some applications (under compression beneath a stem) but they only work marginally in others (behind and aftermarket car wheel to compensate for offset).
As far as I understand, 31.8mm bars not stronger. One of the enginerd types was posting about them awhile ago.But other wise I don't see a need to really standardize anything. Things like bars will go to that 31.8 route because their weight vs strength are there. Seatposts on the other hand there is a standard. Thomson Somethings are just too stupid and simple to try and find a standard.
31.8mm bars can be stronger, but at the cost of being heavier. Because bicycle handlebars encounter more crushing force than anything else, a smaller OD with thicker walls offers much more cross-sectional compression resistance to deformation than a 31.8mm OD tube with thinner walls to achieve the same weight.As far as I understand, 31.8mm bars not stronger. One of the enginerd types was posting about them awhile ago.
You took the words right outta my mouth.31.8mm bars can be stronger, but at the cost of being heavier. Because bicycle handlebars encounter more crushing force than anything else, a smaller OD with thicker walls offers much more cross-sectional compression resistance to deformation than a 31.8mm OD tube with thinner walls to achieve the same weight.
31.8mm bars can be stiffer at the same weight, but that means thinner walls all the way around, and much less resistance to being crushed at the stem, levers, ends...etc. If your bar and stem were one piece, a thinner walled design with a greater overall diamater might be preferable (look at many road bikes).
on quick little side not, i saw a guy a few weekends ago run 4pot XTs with hayes mag levers and lines, i found quite interesting. He said they performed without any hasslesBrakes could definitely benefit from standardization.
To make another auto analogy, you can use Stoptech or Brembo calipers with your stock lines and master cylinder. You can't use Avid or Magura calipers with your Hayes lever and lines.
Bicyclist, I like how you think!You took the words right outta my mouth.
This is very interesting. I wonder what type of fluid he was running? Four-piston XT's were Grimecas I believe, and they used mineral oil. Hayes levers are designed to work with DOT fluid.on quick little side not, i saw a guy a few weekends ago run 4pot XTs with hayes mag levers and lines, i found quite interesting. He said they performed without any hassles
Well, of course they can bolt right up...Because you have to order the specific caliper to fit your vehicle! They are not a universal fit! Just like Thomson seat posts; you have to order the post for your frame, and it will fit perfectly. And if you chew one of your nice Brembo rotors, good luck finding one, unless your Brembo dealer has one specifically for your vehicle. I'm sorry, but your reference to aftermarket brakes makes just the opposite point that you are trying to make. The auto brake industry is far worse when it comes to industry-wide univeral standards than the bicycle industry.Brakes could definitely benefit from standardization.
To make another auto analogy, you can use Stoptech or Brembo calipers with your stock lines and master cylinder. You can't use Avid or Magura calipers with your Hayes lever and lines.
i imagine he would have run mineral oil, as it is not corrosive hence it probably didnt destroy any of the DOT 4 seals in the Hayes leverThis is very interesting. I wonder what type of fluid he was running? Four-piston XT's were Grimecas I believe, and they used mineral oil. Hayes levers are designed to work with DOT fluid.
I think Grimecas ran DOT fluid from memory.This is very interesting. I wonder what type of fluid he was running? Four-piston XT's were Grimecas I believe, and they used mineral oil. Hayes levers are designed to work with DOT fluid.
dude you are such an industry apologist it's not even funny.They choose not to because they can provide a lighter, easier tpo produce etc product without a nonsense "standard" in the way.
the bb bearing cups are interchangeable between race face & shimanoSomeone seems to have made an X-Type 3-piece set up using some mismatched BB bits. Has anyone heard of this? Tried it with any success?
No...I do not personally know about airplane avionics, but car wheels and computer parts have tons of variety. Specs on different bolt patterns for cars. There are about a trillion different types of RAM for computers some of which are incompatible if you are building a computer. Or there is AGP, PCI, PCI-x PCI-e, etc for standers to plug expansion cards into motherboards. I could go on, but my point is I'm in an arguementative mood and many other industries are just as fragmented.In the next five to ten years I want to be able to go into a local bike store and say I need a seatpost, a BB bearing or a headset spacer and be asked nothing other than if I have a brand or color preference. I can buy an wheels for my car that way, avionics for an airplane that way, and hardware for my computer that way.
yes but the point is it is much easier to get car parts when u need it. Although they may have the non-standard stuff, they have the inventory and distribution network to support it. If i bend a rotor, need new brake lines for my hope m4 i either A. order it from jenson or something and wait 4-5 days, or B. order it through a shop and hope they are putting in a QBP order within a day or so and i'll get it in 3 days. The bike industry doesn't have the infrastructrure to justify the many standards or lack thereof. Shops don't have enough inventory, and there isn't any "next day" distributers (well not at any reasonable cost).Well, of course they can bolt right up...Because you have to order the specific caliper to fit your vehicle! They are not a universal fit! Just like Thomson seat posts; you have to order the post for your frame, and it will fit perfectly. And if you chew one of your nice Brembo rotors, good luck finding one, unless your Brembo dealer has one specifically for your vehicle. I'm sorry, but your reference to aftermarket brakes makes just the opposite point that you are trying to make. The auto brake industry is far worse when it comes to industry-wide univeral standards than the bicycle industry.