Hi, I have a Specialized Roubaix 2017and have 2 questions please. 1) is there a noticeable difference in speed performance in the bike with the different springs, I.e is there a loss of power conversion when using softer springs? 2) my stem boot is torn and replacements are hard to come by, any...

Hi, I am working on some project and would like to know the structure of the carbon composite that is used to build the full carbon chainrings. Maybe somebody have some trash to sell? I mean used / worn out full-carbon chainrings, Thanks,

I mainly ride a full sus XC mtb, but thought it might be fun to bring my gravel bike out to the trails I ride, and see how it handles some of the easier single track. I currently have 40C G-One All Round front and rear. I'm thinking of trying a more aggressive front tire for off-road use only...

I use to ride on a 54cm LOOK 765 road bike, and was ok while doing long rides with peloton groups, but then I switched to a 51cm BMC TeamMachine SLR01 (did fitting and adjustments), but still having a hard time keeping up from the middle of the ride to the end. Is it because of the period of...