Soma B-Side Frame
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Soma B-Side Frame

Product Code SO92359
Other products by Soma
27.5" (or 650b) is the tire size halfway in between the more common 26" and 29" MTB tires. 650b tires roll over obstacles better and are more stable at speed than a 26" wheel and are lighter weight than 29er wheels. 27.5" bikes also have less of the unwieldy feel some riders feel 29ers have. Our 3rd generation B-Side has a slightly slacker geometry. Still great for XC trail riding, but more controllable when things get fast. Snazzy Tange/IRD Sliding Dropouts allow you to go single-speed or geared.

Key Features
  • 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
  • Geometry is optimized for 100mm travel 27.5" forks and will handle 120mm forks great too
  • CNC-machined 44mm headtube: Will take 1-1/8" steerers with a ZeroStack 44 headset or tapered steerers with a ZS44 upper assembly and external cup (EC44) lower assembly
  • 27.2mm post size/28.6mm frt. der. size/29.8mm(or 30.0) seat collar, 68mm bottom bracket (English threads); 400mm+ post recommended
  • Recommended tire size: 1.95 - 2.4”
  • Weight: 5.1 lbs



    NOTE: Price applies to Online sales only, pricing may differ in our Retail store.
  • Availability: In our warehouse or with the distributor. Expect delivery in 2-3 days.
  • This item comes with free shipping.

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