cartridge replacement

nil1121

Hello,

I have been told that i need to replace the cartridge on my sons specialised hardrock sport 2007, how do i know which one to buy to replace it ?

thanks
neil

cooldad

Presume you mean bottom bracket but a bit more info would help.

nil1121

sorry, had somebody who knows about bikes look at it and he grabbed hold of the crank arms (pedals) and he could slightly move them from side to side, he said the cartridge needs replacing (bottom bracket). thats all i know. I just dont know what size,type as they seem to come in different sizes 175/180 ??

thanks

cooldad

According to Spech website its a Powerspline
http://www.specialized.com/us/en/bc/SBC ... spid=22089
113mm spindle?
http://www.bikepedia.com/quickbike/Bike ... &Type=bike

You need to measure the width of the bottom bracket shell to see if it is 68mm or 73mm wide. Plenty on Ebay - you will need the tools to take the cranks off and remove/fit the BB.

nil1121

thanks for the info will have a look on ebay

nil1121

what is the splindle dimension ? i have measured the diameter which is a 68mm but it seems to come in 3 spline dimensions 108,113 and 118 ? how do i find out which one i need ?

thanks

cooldad

113 according to Bikepedia above. Or take the cranks off and measure it.

nil1121

thanks once again, never spotted that.

nil1121

i have now ordered the correct BB for my bike but now need to know what tools are required ?

i presume i need one of these http://www.ebay.co.uk/itm/SHIMANO-Splin ... 53e9d9eb1e

do i need anything else ?

thanks

386ka

You just need the correct allen keys for mounting the cranks.