Name: Tern BYB P8 Folding Bike
Brand: Tern
SKU: 12-7-03
Price: 999.0 USD
Availability: InStock

$999.00

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BYB P8 Overview

30% smaller than traditional 20” folding bikes
Fits conveniently into lockers, closets, or any narrow space
Metro Transit Rack with built-in spinner wheels for easier trolleying
Fits riders from 147 to 195 cm (4’10” – 6’5”)
New TFL Joint with 3D interface, DeadBolt design and SpringLock technology
New 3D-forged Physis RF Handlepost
Tern Porter saddle with patented GripPad design
8-speed Shimano Alivio, Shadow RD derailleur
Color: Satin Silver-Blue

Component Specifications

Sourced from Tern's published specifications for the BYB P8. Data note: Tern's published spec sheet for the BYB P8 lists no motor, battery, or display component — this is a manual (non-electric) folding bike, despite being grouped with Vektron e-bikes in this batch. Built in one universal frame size.

Frame & Build

Frame	Tern BYB, aluminum, TriFold patented technology, EFBE tested to ISO 4210
Fork	Tern Tarsus, 6061-AL, hydroformed
Frame Size	One size, fits riders 147–195 cm (4′10″–6′5″)
Color	Satin Silver-Blue

Drivetrain

Shifter	Shimano, 1 x 8-speed
Rear Derailleur	Shimano Alivio, Shadow RD
Crankset	Forged 6061-AL, 52T
Cassette	Shimano, 11–32T, 8-speed
Chain	KMC, 8-speed

Brakes

Front & Rear Brake

Kinetix SpeedStop V-brakes, stainless hardware

Wheels & Tires

Wheel Size	20-inch (406 mm)
Rims	Doublewall aluminum
Tires	Schwalbe Citizen, 42-406, puncture protection, Reflex

Cockpit

Handlepost	Tern Physis RF, 3D forged (5 patented technologies)
Stem	Tern Andros (G2), adjustable, forged construction
Headset	Flux, cartridge bearings, Physis-integrated
Handlebar	Flat bar, 6061-AL, Andros adapted
Saddle	Tern Porter, patented GripPad design
Seatpost	Tern Telescope, 34.9/30.9 mm
Rack	Metro Transit Rack with built-in spinner wheels for trolleying

Folded Dimensions

Folded Size (L x W x H)	35 x 81 x 52 cm (13.8 x 31.9 x 20.5 in)
Folding Time	30 seconds
Weight	14.3 kg (31.5 lb)

Geometry

The BYB P8 is built in a single universal frame size with an adjustable handlepost/seatpost rather than multiple frame sizes. Tern does not publish a stack/reach/tube-angle geometry chart for this model — folded dimensions and rider height range above are the published fit data.

We accept all returns of new, unused, unopened, goods within 7 days of your purchase. If you are not satisfied with an item, simply ship it back to us within 7 days for a full refund. Funds will be returned to the payment method used at checkout. Sorry, No returns on bicycle purchases / frame sets or items less than $25.

Send returns to:
MECHANIC Bicycle Pro Shop:
ATTN: Returns, (Your Order #)
1327 Darby Road
Havertown, Pennsylvania, 19083

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Tern BYB P8 Folding Bike