Need help on which derailour to get?

Jakbroad1

So i currently only have my bike in one gear,
Which derailour shall i buy that will work,i think and im pretty sure its all set up and i just need to fit a new chain and derailour and im good to go. I dont have a gear shifter on the left though but im not to fussed about using the higher gears as long as the main one works (right side)

Also my wheel is 8 speed but my gear shifter has only 7 speeds will it still work? here are some pics.






Many thanks.

nicklouse

rear or front?

any sram for the rear and any for the front.

Jakbroad1

Rear, theres already one at the front

Jakbroad1

Will this work?
http://cgi.ebay.co.uk/Bi-King-SRAM-SX4- ... 27badd9f9b

The Rookie

So you'll need the mech hanger and bolt to suite your frame, a SRAM rear mech (X3,4,5,7,9,0) and a cable as well as the right length chain and then to set it up.

Simon

Jakbroad1

Simon, which hanger would i need? does the sram x4 derailleur come witch the cable? if not where do i get the cable from,
Jak

s-worksenduro

For the rear mech hanger, just bring it into your local bike shop and get them to source one. There is a multitude of various hanger types available for different frames. The mech hanger fits the frame and allows you to hang a rear mech off it.
The X-4 rear mech will work fine with your shifters.
While you are at your bike shop, ask for an inner cable and some cable outer. This does not come with the rear mech.
You will also need a longer chain to allow you to fit the rear mech. Any 8-speed chain will be compatible with your setup. Watch out for wear on your components. If your current chain and cassette are well worn, a new chain may not mesh properly with the cassette causing the chain to slip or jump. Ask at the bike shop for them to look at wear and recommend if the cassette has enough life left

cooldad

Except if your shifter is 7 speed and the cassette 8, you have a slight mismatch.
Are you sure it's 7 speed, as no window and an 8 speed will have 7 clicks.

Jakbroad1

Im sure the shifter goes up to 7, and the back wheel has 8 cogs, but the sram x4 derailleur says its works with 7/8 speeds?

cooldad

The spacing is the same so you could only use 7 cogs at the back and lock one out with the limit screws.
The mech will work with 7, 8 or 9.
Might be an idea to look in the classifieds here or Ebay for some matching second hand stuff.

supersonic

7 shifter clicks = 8 gears.

cooldad

I did mention that a few posts up.

cooldad

Your confirmation however does make my heart glad.

cooldad

Note to self. Avoid beer in the afternoon.