After almost 5 years and 5600 miles of grinding my way up everything locally, I've just replaced these with a compact crankset for some nice spinny comfort.
The chainrings have obviously seen better days considering the mileage, particularly the outer - the "chain saver" pin behind the crank arm is missing, for example. The inner isn't as bad and I've avoided cross chaining throughout their use.
While the arms aren't cosmetically tip-top, any blemishes are minor and they're still very nice light, stiff cranks with both arms and the spider being crabon fibré. All threads/mating surfaces are in fine condition.
May be ideal for a crit/race bike where big rings and a crash-friendly budget are helpful.
As per the title the specs are:
BB: GXP BB86
Rings: Standard 53/39
BCD: 130mm (not compatible with compact rings)
These'll need to be paypalled and posted as I'm outside London, and I'd like £45 posted via courier for these.