Problem with my new derailleurs

[socialfox]

Okay so I decided to upgrade my front and rear derailleur, and at the local bike shop I bought a shimano front derailleur, a shimano Sis rear derailleur, and rapid fire shimano Sis shifters. I installed them quite easily but my problem is the tuning, my front derailleur wont shift at all, its on the lowest gear, while my rear derailluer shifts from gear 2 to 6 (18 speed bike).

I noticed on gear 5 and 6 of the rear derailleur the chain remains on the lowest gear. Also I have a barrel adjuster for the rear derailleur but not the front.

[RobAR]

Welcome to BT, socialfox!
It is always a great help on these type questions, if we know what parts we are dealing with. Your shifters, for example, may be ST or SL-570 or something like that. It's somewhere on each part but also on the box if you still have it.

[trevgbb]

this is where you find all the tech info on shimano products;
http://techdocs.shimano.com/techdocs/index.jsp
find your part nos. and open the tech docs starting SI-xxxx

[cyclerUK]

(04-25-2011, 11:48 AM)socialfox Wrote:  Okay so I decided to upgrade my front and rear derailleur, and at the local bike shop I bought a shimano front derailleur, a shimano Sis rear derailleur, and rapid fire shimano Sis shifters. I installed them quite easily but my problem is the tuning, my front derailleur wont shift at all, its on the lowest gear, while my rear derailluer shifts from gear 2 to 6 (18 speed bike).

I noticed on gear 5 and 6 of the rear derailleur the chain remains on the lowest gear. Also I have a barrel adjuster for the rear derailleur but not the front.

There is usually a barrel adjuster on the Rapidfire shifters, where the cable exits, and that is what is used for the front derailleur adjustment. It sounds like the system just needs setting up.
Check out the tutorials and videos on this site.