felt f85 bottom bracket issue??

redvision

Morning

Have noticed a problem with my training bike recently in that when i am climbing out of the saddle i get a strange sensation through the left pedal.
At first i thought it was my cleats, but used a different set of shoes with different cleats and the same thing occured.
Its almost feels like the pedal is vibrating.

So then i thought ok, must be the pedal. so i changed the pedal for a different set and first ride and the same thing happened.
I have checked the crank and it seems ok.

So the only thing i can think of is the bb.
thing is there is no creaking or rattling and there is no play in the chainset.

is there anything else it could be?

if it is the bb does anyone know what bb a 2012 felt f85 takes?
is there a way i can find out without removing it?
(i know its a square taper, but every site i look at online to see the spec has a different figures - eg one says 103 spindle another says 110 spindle etc).

thanks for any help

nicklouse

check the chain. the free hub and the rear mech chain and chain routing.

re the axle length it depends on the cranks.

redvision

thanks for quick reply.
i did actually change the chain the week before last.
what should i look for when checking that, the rear mech and free hub?

nicklouse

just check that is is all in the right place and looks right.

if it looks ok then i would get someone else to have a look and test before changing the BB.

redvision

ok, will do.

thanks for the help