Hi folks after last nights awesome Bike Chain ride up the Pentlands Ive discovered my Bottom bracket is kinda knackered . There is a lot of play coming from it especially when In the small ring. Now heres the spec for my bike .

GT Aggressor XCR

Now going by the spec It says Its a Truvativ Firex 3.1 chainset with GXP BB , Being a bit of a plumb and knowing very little about components is the GXP Bottom bracket bog standard or are there different sizes or specs.

I walked into halfords today and was served by a lad who looked around 12 who stared blankly at me . Please help .

http://www.merlincycles.co.uk/chainset-bottom-brackets/truvativ-gxp.html
here you go

Thanks Jordie just ordered It.

will fit the BB for you in the car park before the ride round inners on monday paul,better than your crank falling out flat out down caddonbank 😆

Cheers Bruce I'll pay you in Cider for your Hols. 😛