Soma Riff 27.5" Frame Small Pearl White

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Product details

Management number	201760022	Release Date	2025/09/29	List Price	$314.98	Model Number	201760022
Category	Parts Frames E-Bike

The version 2.0 of the Riff offers practical updates in features and geometry without going all-in with progressive geometry that almost everyone is chasing. Slightly steeper seat angle for more efficient climbing and shorter seat tubes to benefit dropper posts.

ED coating inside frame and under the paint increase rust resistance

Boost 148mm rear hub spacing

Geometry is optimized for 120mm forks. Will work well with a 100mm fork, too.

Tange Prestige heat-treated butted CrMo steel; butted CrMo rear end

ISO disc brake tabs

IRD Broski Sliding Dropouts

S-bend seat stays and chainstays

Rear rack and fender eyelets

Dropper post cable routing runs on downtube and inside the seat tube

34.9mm seat collar(not included), 400mm post recommended

CNC-machined 44mm headtube: Will fit 1-1/8 inch steerers with a ZeroStack 44 headset or fit tapered steerers with a ZS44 upper assembly and external cup (EC44) lower assembly

Recommended tire size: 27.5 x 1.95 inch – 2.8”

Only the Large size frame comes with bottle mounts on the seat tube

5.7 lbs (XS)