Mountain Bike Reviews Forum banner
1 - 4 of 4 Posts

·
Registered
Joined
·
331 Posts
Discussion Starter · #1 · (Edited)
Hi! I upgraded almost all parts on My 97 Specialized S.Jumper FS A1 , Just 1 thing i thought wouldn't work well is the 2009 RD-M770 GS Low Normal Rapid Riser , It actually works in all 24 gears and i didn't touch the chain length, and shifts so much smoother quicker and quieter even under load, not that i do that alot, Did i get lucky , because i thought i wouldn't be able to get all gears moving from a long rear derailluer to medim?? I still have to tweak the index shifting i still have the original grip shifters X-Ray 800. :D Updated ,,From the sticky at the top "What happens if i change to a Shorter derailluer ?? Says a Shimano Medum Rear Derailluer can handle 33 teeth aprrox. you have to calculate your setup according the formula , my set up is 43 teeth , that why i came to the conclusion i wouldn't get all the gears.:yesnod:
 

·
Newt Guy
Joined
·
833 Posts
StumpJumperGuy said:
because i thought i wouldn't be able to get all gears moving from a long rear derailluer to medim??
Why did you think that? All you did was change the length of the cage.
 

·
Registered
Joined
·
331 Posts
Discussion Starter · #3 · (Edited)
If you read the sticky: What would happen if i change to from a long rear derailluer to short? That is why i was surprised it worked . My tooth count according to the formula and my MTB is :43 and the shimano Med. Cage is : aprrox. 33 teeth.
 

·
Newt Guy
Joined
·
833 Posts
StumpJumperGuy said:
If you read the sticky: What would happen if i change to from a long rear derailluer to short? That is why i was surprised it worked . My tooth count according to the formula and my MTB is :43 and the shimano Med. Cage is : aprrox. 33 teeth.
Sticky? I don't read "stickies".

:D

And either way, I have changed cage length maybe 50 times on bikes over the years and have never had a problem with it not shifting the full range unless the chain was the incorrect length. Ohh well. The happy baby is happy.

:thumbsup:
 
1 - 4 of 4 Posts
Top