Soma B-Side v.2 650b (27.5") MTB Frame (While Supplies Last)

Soma B-Side v.2 650b (27.5") MTB Frame (While Supplies Last)
Item# BSIDE2
Regular price: $499.99
SALE PRICE: $419.99

650B/27.5" sized tires for mountain bikes are finally getting the attention they deserve. That flat out work great on most terrain and situations.
The second generation B-Side gets a few improvements. Most notably are the snazzy Tange/IRD Sliding Dropouts. We also fine tuned the geometry/sizing.

Tange Prestige heat-treated butted CrMo steel; butted CrMo rear end
Disc brakes only (no canti studs)
Tange/IRD Sliding Dropouts allows geared and single-speed builds with easy wheel removal
S-bend seatstays and chainstays
Low sloping top tube/short seat tube
If you normally ride a 17, you may fit the 16.5 B-Side (400mm seatpost recommended) Rigid CrMo steel disc fork in black available
Geometry adjusted for the White Bros. 650b 80mm travel fork (will also work with some 100mm travel 26 wheel forks) Ideal axle to crown (w/sag): 455mm
1-1/8 size headtube 27.2mm post size/28.6mm frt. der. size/29.8-30.0mm seat collar Recommended tire size: 1.95 - 2.4
Color: Gunmetal
Wt: 4.5 lbs.
Sizes: Sm, Md, Lg, XL

More information, photos and geometry at


Soma MTB 453mm Rigid Disc Fork
Rigid CrMo fork suspension adjusted for 26" bikes with 100mm travel forks. Also recommended for 650b bikes designed for 80mm travel forks.

- Axle to crown: 453mm

- Steerer: 250mm threadless, 1-1/8"

- 43mm rake

- Universal disc mount