MrsTiki wrote:
jmh - are you running a triple on the 105? My husband wants to build up a multi-use bike and is quite focused/obsessed with having a triple.
And disc brakes.
I know the 105's support a triple, just curious if that is what you are running.
thanks,
Denise
No triple, I'm running 2x10 with a XT RD-M771 9 speed rear and a XT FD-M786 double front derailleurs with 40-26 (not a Shimano "approved" mix of chainrings) XT crankset paired with a 11-36 XT 10 speed cassette gave me the high and low gears I needed. Pictured below.
Short answer: If you could find a road triple crankset with a gear ratio that works and pair it with a road triple derailleur and the road triple shifter it would work perfectly with no issues. But with the 2x10 gear options, I'm not sure you gain much with a triple front. A 38-24 gives you a nice bailout gear, but might be lacking on the top end. That's why I mixed chainrings.
Long answer: SRAM road shifters work with their mtn stuff just fine, but they don't have a triple road front shifter. So that leaves Shimano or a Shimano/Campy mix for a triple front. I'm not going to get into mixing Campy and Shimano...but there are obstacles with mixing Shimano road and mountian stuff.
The cable pull on the Shimano 10 Speed road shifters is a bit different than Mountain 10 Speed Derailleurs. This necessitates the 9 speed rear derailleur that works just fine with the 10 speed cassette and 10 speed shifter. The solution to get a triple mountain front mech to work with the road front triple shifters is more difficult. If you can find a J-Tek inline straight adapter (
like this) it would work with a mountain crankset. The problem, again, is the amount of cable the road shifters pull compared to the mountain shifters and but also for the front the spacing on the crankset. I avoided this problem with a double because with only two positions the spacing and cable pull difference aren't that big of a deal to adjust.
Suffer Well.