Originally Posted by ninevictor

OK! =)

The bike is a custom build by Zealot Bikes out of Corona, CA. The frame is KVA MS2 stainless steel with Paragon Poly Drops designed for belt drive. The frame and fork have eyelets for racks and fenders should I choose to go that route instead of the backpack I currently use.

The drivetrain is Gates Carbon Drive paired with Shimano Alfine 11 Di2

I wanted disc brakes so they selected Avid BB7 S Road calipers with Shimano centerlock rotors.

The front hub is an Alfine dynamo hub laced to Stan's ZTR Alpha 340 Disc tubeless rims with Hutchison Secteur 28c tires.

The framebuilder is a fellow bike + train commuter and rides a belt-drive bike. It was my interest in belt drive that sparked the conversation that resulted in this bike. We imagined a low-maintenance commute bike that could stand in for a traditional road bike because of my propensity to throw in some "extra credit" mileage on my afternoon rides home. Stainless steel was selected as the low-maintenance frame material. Shimano's mechanical Alfine 11 was the initial IGH of choice but we soon changed to Di2 after Di2 parts started becoming more readily available in the US. There's no functional reason we decided on Di2. The honest truth is that we all thought it would just be really cool. Gates' Carbon Drive was always the drive component of choice because of its durability and clean method of operation. No lube required; can't have grease getting on the pant legs. Disc brakes were used because I commute by bike rain-or-shine and the improved wet-weather performance of disc brakes over standard road calipers cannot be denied.

The Alfine 11 gear range is incredibly wide and very functional. I've taken the bike up some of the steeper climbs (>15% grade) in the area so the low gears are more than sufficient. Additionally I can easily cruise at 20 mph on the local MUPs and still have a couple of taller gears at my disposal. An added benefit is the belt drive is extremely quiet! It's even quieter than the single speed chain that was used to test the bike while the builders were waiting on Gates to release the Di2-compatible rear sprocket.

I hope that covers what you were looking for!