bb/chain device advice needed

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edited December 1969 in MTB workshop & tech
hopefully all this information helps as im 10000% confused right now,

Frame : http://www.chainreactioncycles.com/Mode ... delID=2650

Cranks : http://www.chainreactioncycles.com/Mode ... delID=1022
Cheapo cranks, they will do for now til i have more funds.

Chainring : http://www.chainreactioncycles.com/Mode ... odelID=201

BB : http://www.chainreactioncycles.com/Mode ... delID=2962
Again a cheap bb but will do for now til i have more funds

All i want is for it to all work :( i currently have a 118mm bb as i quote from the crc website

" Question: what size bb does the frame take ?
CRC Replies: 68 shell, Axle length depends on your cranks. 113 usually for a triple, and 118 for a single with chain device. "

Which chain device should i go for ?

http://cgi.ebay.co.uk/ws/eBayISAPI.dll? ... SIMPLEITEM

or

http://www.chainreactioncycles.com/Mode ... odelID=259

or

http://www.chainreactioncycles.com/Mode ... delID=1143

http://cgi.ebay.co.uk/ws/eBayISAPI.dll? ... SIMPLEITEM

or

http://www.chainreactioncycles.com/Mode ... odelID=368



I wan't to make sure whatever device i buy it will work with my cranks/chainring, and what size BB i need. Do i need 118mm ( currently have ) 113 or 113mm e-type


Sorry for long post but im trying to get to the bottom of this so i can ride !

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