Old MTB in need of a new chain - help?

celestialteapot

Hi,

My mountain bike is pushing 15yrs old. It wasn't serviced that long ago so the brakes & gears are in pretty good order, but I think I need to replace the chain. The problem is, my bike has 15 speed SIS gears and apparently this is obsolete so I don't really know what chain I need to buy.

My rear derailleur has a 5-speed cassette and my front derailleur a 3-speed cassette.

Any advice much appreciated

(here's a photo of my elderly bike - http://i.imgur.com/ktYGHfn.jpg)

StinkinHippy

I believe you need something like this.

http://www.chainreactioncycles.com/mobile/clarks-anti-rust-5-6-speed-chain/rp-prod71552?gs=1&gclid=CMmfvJzbv8cCFUGfGwodfl0GPQ&gclsrc=aw.ds

The chain required to the best of my knowledge is dependant on the number of gears at the back. 5 in your case.

May want to hold off for a more informed answer before throwing money at it of course. I may be missing something.

The Rookie

5,6,7 and 8 speed chains are all the same.

In terminology, you have a freewheel at the rear (cassettes didn't come until 7 speed, even most of them are freewheel) and chainrings at the front.