bottom bracket question~
Hello.
Ive been trolling this site for years and have read alot of good tips and advice but ive run into a question where I needed to post. I have a 2010 gary fisher rail super 9speed and I need to replace the bottom bracket. The part is The Vero double cranksets use a JIS (Japanese Industrial Standard) square taper spindle bb and the length is @ 103mm. BB7420ST Cartridge BB JIS 68x103mm M8 Bolts I guess I can order the part from full speed ahead but since Im buying a new one anyway, I wanted to upgrade to something better. my question is, what specs has to be same as the one listed above. I'm guessing it has it be a 69x103mm in size and a square taper. Is that all I need to match??? are bbs and cranksets tied together or as long as its square taper im good? thanks in advance. |
As long as it's 68x103mm JIS taper, you'll be fine.
|
You can get by with a slightly different spindle length. It can be a couple of mm longer,
or sometimes you can even get by with shorter, depending on clearances. ISO Arms on JIS spindles work fine all the time, but it moves your arm and rings outboard a little bit, thus the chain line moves outboard. You can't always mount a JIS tapered crank arm on an ISO spindle, but sometimes you can and it works fine. Every variation from your original usually moves your chain line a little, sometimes a lot, sometimes too much. Look here:ISO/J.I.S. Interchangeability EDIT: If you really want to upgrade and have some cash to drop, call the people at Phil Wood and ask them what they would recommend. But you're gonna drop a hundred bucks plus by the time you're done. |
thanks for the advice.... which leads me to my second question.
from amazon, i have a few options brands sunlight $14 origin8 alloy $36 sugino $35 ird $34 I have no idea what the price range for bbs are... any brand recommendations? thanks |
Originally Posted by iFeelu
(Post 14973888)
thanks for the advice.... which leads me to my second question.
from amazon, i have a few options brands sunlight $14 origin8 alloy $36 sugino $35 ird $34 I have no idea what the price range for bbs are... any brand recommendations? thanks Found this one. http://www.biketoolsetc.com/index.cg...r-Spindle&q=&s= |
Originally Posted by davidad
(Post 14974186)
Go with the Sugino.
|
All times are GMT -6. The time now is 08:47 AM. |
Copyright © 2024 MH Sub I, LLC dba Internet Brands. All rights reserved. Use of this site indicates your consent to the Terms of Use.