1
vote
1answer
59 views

Replacement chainring compatibility

I have a Fuji Absolute 3.0 (about 2011) with a generic crankset. The triple chainrings are stamped with 'SAMOX'. It is a 30-42-52t set. I favour the middle chainring, which is now badly worn and needs ...
1
vote
1answer
187 views

Replacing SRAM Red chain set with Ultegra - bottom bracket?

I have a cyclocross bike with an Ultegra 6700 chainset and a road bike with SRAM Red. I'm looking to get a Stages Ultegra power meter (left crank arm mounted) that I can swap between both bikes. This ...
1
vote
0answers
155 views

Low gearing setup for road bike with Shimano dual control

Question: What is my best bet for a crankset, given the following requirements for a road bike I am setting up: 68mm "English" thread bottom bracket Shimano STI "brifters", 2x10 (I already have ...
5
votes
1answer
264 views

Number of gears for a racer

I am looking to upgrade my racer, I currently have a Bottecchia racer from the mid-80s and it has 14 gears. While looking around for newer racers I noticed that a number of them had 20 gears while ...
3
votes
1answer
2k views

Changing from Shimano Road Double Chainset to Triple Chainset?

Road bike setup at the moment is: Shimano Tiagra (9 Speed) Shifters / Front Derailleur / 52-39T Chainset / Short Cage Rear Derailleur / Casette 27-11T. Will I be able to do a straight swap and ...
5
votes
5answers
2k views

Why would a manufacturer change chainring sizes drastically between years?

A friend was just showing me the 2010 Cervélo S2 specs, as well as the 2011 S2 specs, and the Ultegra line, at least, changes from a 53/39 chainring set in 2010 to a 50/34 set in 2011. This seems like ...