Cranks, Chainring and Guide: SRAM X0 Carbon BB30 Cranks, E13 32t Chainring, MRP 1x Chainguide
My intention for the drivetrain is always predicated around making the cranks and chainring the stiffest as possible, so that my energy goes into driving the bike forward, not flexing the cranks. The XO cranks, E13 ring and BB30 interface are all some of the stiffest and lightest on the market. The MRP 1x guide has treated me well. When coupled with a clutch rear derailleur, I have yet to drop a chain with this arrangement.
Drivetrain: I am running an XT arrangement
10spd XT shifter
11-36 XT cassette
XT chain
XT Shadow Plus rear derailleur (i.e. clutch style)
XT SPD pedals
I want a drivetrain that is both durable and will last at least one full season, that shifts flawlessly. Weight is lower on the order of importance.
Seatpost: 2012 RockShox Reverb 5” dropper post
I have run this all season without any incident (unlike my previous experience with the 2011 RockShox Reverb.) I feel like the range of motion is perfect for a trail bike, and like that there is zero offset on the post.
Saddle: WTB Silverado NiCro (hollow steel rail)
I love the Silverado shape. It works really well for me. I don’t, however, see much point in running super-expensive carbon and ti saddles. Saddles are a high-wear item, and they are about the least important place to save weight.
Handlebar and Stem: I am currently running Crank Brother Iodine 11 carbon bars with 1.2” of rise and a 30.7” width mated to an Easton Haven 55mm stem
I like the bars, but feel they are a bit flexy while sprinting out of the saddle and cornering with force. I intend to replace them with ENVE DH carbon bars to match the ride on my DH bike. The short Easton stem opens up the maneuverability of the front end of my bike, and the length is perfect for my riding style.
Brakes: Avid XX World Cup Braketset. 8” front, 7” rear
The Avid XX brakeset was included with my bike. They are not my first choice, and, to be honest, I have warrantied the 2011s, and then warrantied the 2012s that were sent as replacements. I am now on the 2013 version, which seems much better. I test brakes often, and if I were buying a new set, I would have Shimano XT or Saint brakes on the bike, without question. I put a ton of value on powerful brakes that modulate well.