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2026 Tern

BYB S11

A 20″ aluminum frame folding bike with upper mid-range components and tektro rim brakes.
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Manufacturer Price

A$4,045($2,885)
Weight28.0 lbs  
FrameAluminum
SuspensionRigid
ForkAluminum
Wheels20″ Aluminum
Drivetrain1 × 11
Groupset105
BrakesTektro Rim
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Insights
Gearing

A bike with lower gearing will be easier to ride up steep hills, while a higher top end means it will pedal faster down hills.

Lowest gear

(climbing)

29 mph

BYB S11

22 mph

Similar Bikes

Highest gear

(descending)

Price History
Specs
Build
Frame

Tern BYB, Aluminum, TriFold patented technology, EFBE tested: ISO 4210

BB StandardBSA, 68mm, Threaded

ColorSatin Silver

Fork

Tern Tarsus, 6061-AL, hydroformed

Bottom Bracket

FSA, BB-EVO8681

Headset

Flux Pro, angular contact bearings, Physis integrated

Stem

Tern Andros (G2), adjustable, forged construction, patented technology

Handlebar

Kinetix Pro X, double-butted 7050-AL, Andros adapted

Saddle

Ergon SMC30 Pro, TiNox Rails

Seatpost

Tern Telescope, 34.9/30.9 mm, 2014-AL

TypeRigid

Pedals

MKS UB-LITE EZY

Groupset
Rear Derailleur

Shimano 105, Shadow RD

Front Derailleur

n/a

Crank

Crankset, FSA Gossamer Pro, 54T MegaEVO BB386

Shifters

Shimano 105, 1 x 11 spd

Cassette

Shimano 105, 11-32T

Chain

Shimano, 11 spd

Chain Guide

Hebie

Brakes

Front: Tektro V, swivel link, race pad, Rear: Tektro V, swivel link, race pad

TypeTektro Rim

Brake Levers

Shimano

Wheels
Rims

Front: Kinetix Pro X, Paired Spoke technology, straight-pull design, 16H, Rear: Kinetix Pro X, Paired Spoke technology, straight-pull design, 16H

Tires

Schwalbe Marathon Racer, 40-406, puncture protection, Reflex

Accessories
Fenders

SKS, stainless hardware

Racks

Combo Mount

Bell

Pitch, brass

Rider Notes
Riders Also Viewed

First added March 28

Last updated April 4