My Shimano FC-M440 has just gone on me and need to replace it.
1) any recommendations under the £50 mark

2) Would this fit.

Thanks

Forgot to say its not the Octilink version, I think its the square taper one.

which side?
what length?

i've got a set of shimano sq-t arms right here

i got a newish sr suntour up for grabs. only done about 20miles. in very good nick

the FSA's wouldn't, as they need an ISIS BB

cog side, 175mm.

So how many different types of fitting are there?
Square
Octilink
ISIS BB

What is ISIS BB then?

ISIS is shit. stay away. imo/ime HT2 is nearly as shit. imo stay away too.
imo stick with the older sq taper system. it reliable, doesn't weigh all that much more and the whole 'stiffness' marketing of ISIS was, imo, for the majority of riders, bullshit.

i had ISIS and HT2 for just over 2 years, and in that time went through 6 or 7 BBs. the previous 2 years had been on a single sq taper BB. i've just gone nack to sq taper and i fecking love it.

isis is splined like octalink, octalink has 8 splines, ISIS has 9 (i think)

don't get isis, it's a truly flawed system

i'll check the one i have in the morning, it's yours for the price of postage if it's good

sorry mate, 170 :-(

just a warning, the taper orientation varies with different cranks, some have it as a diamond shape (shimano) whereas truvativ have it square with the crankarm

so long as you buy a pair, it's no bother, but if someone offers you a single arm, make sure it's the right orientation

Thats ok, thanks Mike, I will try and get an upgraded part since it has gone (good excuse as any).