What's up guys.
I recently purchased my first power meter that was SUPPOSEDLY to be a GXP bottom bracket,
but clearly it's not.

I've only had the liberty to purchase and replace GXP type BB's so dunno the ID on this type.
But, gathering it's larger than my GXP I assume it's BB30.

Can anyone clarify if it is a BB30 and if I can get a BB adapter to fit my GXP?
Considering it's bigger than my GXP this may be a hopeless cause. not sure.

Here are the pics
my SRAM Rival crankset on the right
longer spindle groves>>>>





another shot>>>





Any opinions are welcome
thx!

measure? measurements are facts not opinions . you are asking about spline type , it seems .

What brand is the crank? SRAM is the only crank that uses GXP and the non-drive side is only 22mm vs 24mm for the rest of the spindle. Shimano and others use a spindle that is 24mm for the entire length. Your picture looks like about a 2mm difference between the splined ends, which means it is probably not a 30mm spindle. You probably need a Shimano or FSA external BB for that crank.

Yep, looks like a 24mm spindle, Shimano, FSA etc.

Hey thanks for the replies guys and apologies for the later reply.
I found out from the seller that Quarq makes there own GXP equivalent spindle size
for those who didn't know.

Apparently will need a FSA BBright PF30 To MegaExo Bottom Bracket adapter.
This will fit for a 2014 Cervelo S2 that is on order.

cheers.