NordicElf Posted April 28, 2016 Author Posted April 28, 2016 what type of bb is fitted to either bike? BB30, PF30, BB89 BB386 etc etc Brand? Type of bearings how many hours on each? Trek: BB Shimano Ultegra Shell x axle, mm 68 x 118, Splined, Shimano. Hours... not nearly as many as the Focus. Focus says PF30 on the frame but I think it has an adapter BSA??? not too clued up on BB's etc. Garmin says a shade under 8000km but I noticed it the day I got the Focus, it just wasn't as smooth. I'm sure it was Shimano - I built the bike, I remember having to pay R300??? for the BB when they put the groupset on. Groupset was 105 - assumed it would be 105.
RockCoach Posted April 28, 2016 Posted April 28, 2016 I think you may be feeling a more worn drivetrain on the one bike.
Mr X Posted April 28, 2016 Posted April 28, 2016 To check the bb, take the chain off the chainring and spin the cranks without the chain. It can also be the rear hub/jocky wheels - spin the cranks backwards with chain on and try and see if you can notice a difference. Wheels and tyres can also make a noticeable difference in smoothness. I think however that it is the shorter cranks.
TheJ Posted April 28, 2016 Posted April 28, 2016 How rude. Surely he'd be fit for 2.6 or 2.8? http://memesvault.com/wp-content/uploads/Laugh-Meme-04.jpg
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