Tern has just introduced their new folding bike series called BYB (Bring Your Bike) in May 2019. There are two new bikes, which are BYB S11 and BYB P8, and both of them are launched in July 2019.
New Features
Tern is a Taiwanese company founded in 2011 by Josh Hon whose father is Dahon’s founder. Therefore, a lot of Tern bikes have the same middle hinge as found on Dahon folders. The new Tern BYB bikes have made a breakthrough by introducing TriFold technology with 2 hinges on the main frame and 1 more hinge on the handlepost.
Tern describes these as their smallest folding bikes ever as they are 30% smaller than typical 20-inch folding bikes. They use 20-inch wheels, therefore, the folded size is not as compact and the folding mechanism is a little more complex than a Brompton. Otherwise, they feature rack-integrated spinner wheels for easier trolleying, a stiff and durable DoubleDeck frame design, and a comfortably long cockpit.
Tern BYB P8 vs BYB S11
| BYB P8 | BYB S11 | |
| Wheel Size | 20″ | 20″ |
| Speeds | 1×8 | 1×11 |
| Weight | 14.3 Kg (31.4 lb) | 12.7 kg (27.9 lb) |
| Folding Size | 35 x 81 x 52 cm (13.8″ x 31.9″ x 20.5″) | 33 x 81 x 51 cm (13.0″ x 31.9″ x 20.1″) |
| Gear Inches | 31″ – 91″ (2.50 – 7.28 m) | 32″ – 94″ (2.57 – 7.48 m) |
| Suggested Rider Height | 147 – 195 cm (4’10” – 6’5″) | 147 – 195 cm (4’10” – 6’5″) |
| Maximum Load Weight | 105 kg (231 lb) | 105 kg (231 lb) |
| Frame | Tern BYB, Aluminum, TriFold patented technology, EFBE tested: ISO 4210 | Tern BYB, Aluminum, TriFold patented technology, EFBE tested: ISO 4210 |
| Fork | Tern Tarsus, 6061-AL, hydroformed | Tern Tarsus, 6061-AL, hydroformed |
| Handlepost | Tern Physis RF, 3D forged | Tern Physis RF, 3D forged |
| Stem | Tern Andros (G2), adjustable, forged construction | Tern Andros (G2), adjustable, forged construction |
| Headset | Flux, cartridge bearings, Physis integrated | Flux Pro, angular contact bearings, Physis integrated |
| Handlebar | Flat bar, 6061-AL, Andros adapted | Kinetix Pro X, double-butted 7050-AL, Andros adapted |
| Grips | Velo ergonomic, lock-on | Ergon GS1 Leichtbau |
| Saddle | Tern Porter, patented GripPad design | Ergon SMC30 Pro, TiNox Rails |
| Brakes | Kinetix SpeedStop V-brakes, stainless hardware | Tektro V, swivel link, race pad |
| Front Wheel | Kinetix Neutron Mini 74, sealed cartridge bearing Opt: BioLogic Joule 3 dynamo | Kinetix Pro X, Paired Spoke technology, straight-pull design, 16H |
| Rear Wheel | Novatec, sealed cartridge bearing | Kinetix Pro X, Paired Spoke technology, straight-pull design, 16H |
| Tires | Schwalbe Citizen, 42-406, puncture protection, Reflex | Schwalbe Marathon Racer, 40-406, puncture protection, Reflex |
| Shifter | Shimano, 1 x 8 spd | Shimano Ultegra, 1 x 11 spd |
| Rear Derailleur | Shimano Acera, Shadow RD | Shimano Ultegra, Shadow RD |
| Crankset | Forged 6061-AL, 52T | FSA Gossamer Pro, 54T MegaEVO BB386 |
| Price | $1295/€1195 | $2495/€2295 |
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