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2016 Mosaic RS-1 Disc Road Bike: 57cm - True Temper S3 Steel - SRAM Red 22 Hydraulic w/ Quarq - Zipp 202 - ENVE Cockpit - 17lbs

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Product Description

Local pickup price in Portland is $2600

This 2016 Mosaic RS-1 is a handbuilt bicycle made for speed and comfort from the no longer made super-steel True Temper S3.  It weighs a scant 17.3 pounds complete!  It was featured at NAHBS, and commands an intimidating $5600 frame/fork or $9000-$12,000 complete price when new.  The finish has some cosmetic issues (see conditions section).  If you can live with some paint issues and not expect a show bike quality finish, this is a super great deal.

The builder can describe their bike better than I can, so here's the first few lines from their listing:

Mosaic Cycles is pleased to announce the new RS-1: a steel road bike that blends cycling’s oldest frame material with 21st-century tubing technology to create a thoroughly modern road bike with the classic look and signature ride feel of high-performance steel tubing. Even in this modern age of F1-inspired carbon and aerospace titanium tech, many riders still whisper of the ride of steel in reverent tones.

This devotion to the uniquely lively ride of a handmade steel frame is the reason Mosaic developed the new RS-1 series. “Having a really solid steel road bike in our line-up really completes the models we offer,” said Aaron Barcheck, Mosaic Cycles founder and lead framebuilder. “We’ve brought our own Mosaic perspective to the steel road bike; all the things you’d want out of a modern bike with the timeless ride qualities of a premium steel frameset.” Available in both classic rim-brake and modern disc-brake configurations, both variants share the same Columbus Spirit HSS tubing with an elegant tapered head tube and reliable threaded bottom bracket. Classic road bike aficionados will appreciate the details like “star” cable port/bottle boss reinforcements & braze-on front derailleur mount.

The build is a no expenses spared affair.  The 11s SRAM Red 22 drivetrain is complete with hydraulic brakes and a Quarq power meter.  The steel frame is matched to carbon tubular Zipp 202 wheels, and ENVE carbon fork/handlebar/color-matched stem.  Classy Chris King headset & Salsa skewers in Burnt Orange round out the build.


This bike has been ridden and has a few cosmetic issues, but is overall in  excellent riding condition.  The frame issues to note, labeled in the photos: 1) top tube on driveside has a small dent from handlebars, 2) Non-drive side seatstay and chainstay near dropout has scraping, 3) Drive side chainstay has three chips, exposing the green under layer of paint.  These are the main reasons the bike is priced so cheaply.  Aside from these, the finish and decals look glossy and wonderful with only minor scratching and a few tiny chips for the part.  If you can live with some paint issues and not expect a show bike quality finish, this is a super great deal.

Components overall are excellent to near mint cosmetically.  The only things to note are some light scuffing on the crank arms and a few little scratches on the handlebar. They're in excellent shape mechanically and has been tuned up.  The chain is getting close to the point you should think about replacing it, but it has some miles left in it.  Wheels are true and have no damage.  Tires, cables, and bar tape are brand new.  Power meter battery not tested or guaranteed.

Frame Details

  • Frame material: True Temper S3 ultralight steel
  • Fork: Mosaic / ENVE carbon
  • Wheel size: 700c
  • Post mount brakes
  • Effective Top Tube570 mm (slightly sloping)
  • Seat Tube: 55cm (c-t) / 53.5cm (c-c)
  • Head Tube153.4 mm 
  • Chainstays: ~413mm
  • Head Tube Angle73° 
  • Seat Tube Angle72° 
  • Standover Height805.3 mm 



  • SRAM Red 22 11-speed group with hydraulic brakes & Quarq power meter
  • Crank: 175mm, 50/34t compact double
  • Cassette: SRAM XG1190 - 11 Speed - 11-28t
  • Wheelset: ZIPP 202 tubular, 700c w/ unlabeled 700x26c tan sidewall tires
  • Stem: Enve/Mosaic 115mm, -7 degree
  • Handlebar: ENVE 44cm
  • Seatpost: Thomson Elite 27.2mm
  • Saddle: Fizik Arione
  • Headset: Chris King 1 1/8" tapered, Burnt Mango Orange
  • QR Skewers: Salsa flip-offs 

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