GSD S10

Enormously Useful. Surprisingly Small.
MSRP $5,699.00 (Single battery, 400Wh), $6,699.00 (Dual battery, 900Wh)
  • Bosch® Performance Line motor
  • Bosch dual-battery system (400Wh or 900 Wh) for a range of up to 250 km
  • Magura® MT5 4-piston hydraulic disc brakes
  • Custom 62 mm Schwalbe® Super Moto-X tires with puncture protection
  • Heavy-duty frame-integrated rack
  • Boost thru-axle hubs
  • Wide range of accessories, including the Cargo Hold Panniers
  • Andros stem for handlebar height and reach adjustments
  • Fits two Thule Yepp Maxi child seats, or one Thule Yepp Nexxt Maxi seat—no adapters needed
  • 20" wheels
Electric
Top-Tier

Product Reviews

The Tern GSD S10 is the minivan of e-bikes. It’s built to carry two kids plus groceries and can handle up to 440 pounds, making it a hauling heavy hitter.

TripSavvy

Roadworthy additions on the LX and R14 models include a high-/low-beam headlight and, on all models, an always-on brake light that intensifies when you squeeze the Magura MT5 eStop levers.

Bicycling Magazine

With the GSD S10, anyone and everyone can really get going right away and need not fear getting into awkward situations, such as cumbersome turning maneuvers due to an unusually large turning circle.

LifeCycle

The Tern GSD is funny-looking. But use it once, and in short order, you’ll realized its brilliance. Notice I said, “use it” instead of “ride it.” [...] The GSD is a tool, an appliance, a life accessory. It could replace a car for, I’d estimate, over 90-percent of my day-to-day needs.

Bicycling Magazine Newsletter

Specifications

General Info
Speeds:
1 x 10
Weight:
27.06 kg (59.7 lb)
Gear Inches:
29" - 95" (2.31 - 7.57 m)
Folding Size:
1,730 × 400 × 830 mm (68.1 × 15.7 × 32.7 in)
Folding Time:
5 sec
Frame Sizes:
181 cm (Total Length)
Distance: Seatpost to Handlebar:
49 - 56 cm (19.3 - 22 in)
Distance: Saddle to Pedal:
69 - 112 cm (27.2 - 44.1 in)
Suggested Rider Height:
150 - 195 cm (59.1 - 76.8 in)
Max Gross Vehicle Weight:
200 kg (440.9 lb)
Max Rider Weight:
120 kg (264.6 lb)
Frame
Frame:
Tern GSD, 7005-Al, patented MultiTruss design
Fork:
Tern GSD, 1.5" Taper, Boost Thru-axle, 110 mm, 7005-AL
Cockpit
Handlepost:
Tern Physis 3D (G2), 3D forged, 5 patented technologies, 12°, 290 mm
Stem:
Tern Andros (G2), adjustable, forged construction, patented technology
Headset:
Tern Flux Pro Taper, 1.5", angular contact bearings, Physis integrated
Handlebar:
Tern Sweep, 27 degrees, 6061-AL, Tern Andros adapted
Grips/Bar Tape:
Ergon GC10, for swept bar
Saddle:
Tern GSD, with rear handle
Seatpost:
Tern Telescope, 34.9 mm, 2014-AL
Brakes
Front Brake:
Magura MT5, 4-piston hydraulic disc, 180 mm rotor
Rear Brake:
Magura MT5, 4-piston hydraulic disc, 180 mm rotor
Brake Levers:
Magura, hydraulic
Wheels
Front Hub:
Tern Atlas, Boost thru-axle
Rear Hub:
Tern Atlas, Boost thru-axle, Syntace X-12 standard, ebike reinforced design
Spokes and Nipples:
Stainless steel, 13G
Rims:
Tern Atlas, ultra wide 36 mm, dual reinforced joint
Tires:
Tern x Schwalbe Super Moto-X, 62-406, Green Guard puncture protection, Reflex
Transmission
Shifter(s):
Shimano Deore, 1 x 10 spd
Rear Derailleur:
Shimano Deore Shadow+
Crankset:
Tern GSD custom, forged 6061-AL DH crankarm
Cassette/Freewheel:
Shimano 11-36T, 10 spd
Bottom Bracket:
Motor integrated
Chain:
10 spd, DHT for eBike, GST corrosion resistant coating
Pedals:
Urban with non-slip surface, sealed bearings
Shifter Cable & Housing:
Jagwire LEX-SL, slick treatment, alloy ferrules
E-System
Motor:
Bosch Performance, 36 V/250 W, max speed 25 kph (EU); max speed 20 mph (US), max torque 63 Nm
Battery:
Bosch Dual Battery system, 400wh or 900wh
Display:
Bosch Purion, 4 mode selectable, walk assist
Range:
400 Wh: 50-110 km (31-68 mi), 500 Wh: 60-140 km (37-87 mi), 900 Wh: 110-250 km (68-155 mi)
Charger:
Bosch Standard Charger
Bells & Whistles
Bell:
Aluminum
Chainguard:
SKS Chainblade
Kickstand:
Heavy-duty double stand, 80 kg capacity
Luggage Socket:
Combo Mount
Front Light:
Tern Valo Direct, integrated, 41 lux/150 lumens
Rear Light:
Herrmans H-Trace, for eBike
Fenders:
SplashGuard, stainless hardware
Rack(s):
Frame integrated, heavy duty design

*Note: These are our standard model specifications. The bike's weight and folded dimension may not include racks and fenders. The specifications for your country may differ slightly. We do our best to ensure that the specifications listed here accurately reflect the exact parts found on our production bikes. However, component changes do occur for various reasons and there may be brief delays on site updates. We reserve the right to make component changes without prior notification, which may cause discrepancies with the information listed on the web.