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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
Weight12.7 kg  
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)

47 km/h

BYB S11

35 km/h

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
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First added 28 March

Last updated 20 June