bits for an old bike

PeterClark

Hi all,

Im trying to rejuvenate my old fixed frame rockhopper comp... its pre1997 but not sure by how much, possibly 1994.

Its going to become a bike to go to work on. the crankset, chain, cassette amongst other things need replacing.

ive been on chainreaction to have a look at some things, wondered if there would be any compatibly issues at all?

Chainset - http://www.chainreactioncycles.com/Mode ... elID=12644
Chain - http://www.chainreactioncycles.com/Mode ... elID=25424
Cassette - http://www.chainreactioncycles.com/Mode ... ModelID=55

i will need a new rear derailleur, new cables for both gears and brakes but thats more housekeeping rather than essentials, the above needs replacing now!

supersonic

Is the bike 8 speed already, and a rear cassette, not a freewheel?

You need to know the bottom bracket axle length to match the crank.

PeterClark

the bike is 8speed already.

sorry im confused by what you mean about "a rear cassette, not a freewheel."

I think i might need a new bottom bracket from what a mate said yesterday... thats as old as the bike so the bearings are probably not so happy.

thanks

Vivid

Hi,

Try identifying if your bike has a freewheel or cassette by spinning the sprockets backwards. Freewheel splines do not turn when spun, Cassettes splines do turn when spun.

PeterClark

hi,

well i havent taken the bottom bracket out, but i measured the length of the bit of frame the bottom bracket goes through (great terminology there i know!) at 80mm. how does this bottom bracket fit in with that measurement and also the crankset?

http://www.chainreactioncycles.com/Mode ... delID=1002

Cheers

supersonic

80mm? Should be 68mm or 73mm. This is the shell width - the axle length is dependant on the cranks, so I will look it up for the one you linked to.

PeterClark

i would imagine it was 73 then. the measurement was evidently not 100% accurate... suppose it would be a good idea to take the old one off first.