Tern GSD S10 Gen 3 Electric Cargo Bike
- Class 1
- 401-600 Wh
- 61-80 mi claimed
- Over 400 lb max load
SVT Score, Upper
The connected GSD trim: ABS brakes on large rotors, GPS tracking and a colour display on a longtail Bosch cargo bike, at a high price.
$7,999
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Usability
5.1 out of 10- Option: dual battery bays, second pack sold separately
- Range: 28-61 mi claimed on one pack, 56-122 mi on two
Better on batteryTern Orox R14The Orox R14 carries an 800 Wh Bosch pack. $6,999Scores 7.0- Fork: Suntour, 34 mm stanchions, travel not printed
- Subscription: alarm and tracking need Flow+ after a 12-month trial
- Searched: Intertek SGS Certipedia UL TÜV SÜD CPSC Health Canada
- Record: Intertek ETL, ANSI/CAN/UL-2849 (Electrical Systems for eBikes), none: drive-system listing, does not name any Tern bike, ROBERT BOSCH LLC - Foothill Ranch, CA
- Record: SGS, not printed (Recognised External Approval/Certification Scheme; EPAC, EU-spec model codes), GSD R14 3PCxEU25X, GSD S10 3PCxEU25X, GSD P00 3PCxEU25, LEVA Group Pty Ltd
- Record: SGS, not printed (Recognised External Approval/Certification Scheme; EPAC, EU-spec model codes), Quick Haul Long D9 2PCxEU25, GSD S10 2PCxEU25, LEVA Group Pty Ltd
- Frame: Tern frame, fork and handlepost five years, ten with Tern Care; other Tern parts one year
Strengths
- Anti-lock brakes with big rotors
- GPS tracking and alarm built in
- Colour display with app control
- Carries two kids or an adult passenger
- Suspension fork smooths rough roads
- Puncture-protected tires front and rear
Drawbacks
- Heavy to lift or push uphill
- High price for a cargo bike
- GPS tracking needs a paid subscription
- No throttle for loaded starts
- Battery is small for a bike this heavy
The ABS-braked GSD for carrying kids, but heavy and expensive
Specs
- TypeCargo
- E-Bike ClassClass 1
- Battery401-600 Wh
- MotorMid-drive
- Top SpeedUp to 20 mph
- Claimed Range61-80 mi
- Weight71-85 lb
- Max Rider LoadOver 400 lb
- BrakesHydraulic disc
- SuspensionFront
- FoldingDoes not fold
- CertificationsClaimed only
- Warranty2 Years
At a glance
- Cane Creek suspension seatpost
- Stores standing on its tail
- USB-C port on the cockpit
- Stile Products, Inc. of Lakewood, California operates that store.
- The brand is owned by Mobility Holdings, Ltd. of New Taipei City, Taiwan, which also issues the warranty.
- Tern e-bikes are sold in the US through Tern Store USA at store.ternbicycles.com.
- Every e-bike ordered online ships to the nearest authorized Tern dealer, or to a certified shop where no dealer is near, for assembly and pickup.
- Authorized bike dealers across the US also sell the range, from ultra-low-step city bikes and compact folders to fat-tire longtails.
- The search turned up no Tern e-bike sold on Amazon by Tern or an official Tern store (October 2026).
- The store takes returns within 30 days of purchase.
- Of the eight major US retailers, only REI sells Tern e-bikes, and no Tern listing there reaches ten reviews (the Quick Haul P9 Sport leads with 7); Walmart, Best Buy, Target, Costco, Dick's Sporting Goods, Home Depot and Lowe's carry none (October 2026).
The Tern GSD S10 (Gen 3) is a longtail electric cargo bike on the Bosch Smart System, with a Cargo Line mid-drive rated 85 Nm and a 545 Wh Bosch PowerPack 545; Bosch prints watt-hours only. The frame has two battery bays, and Tern lists packs up to 800 Wh each as the dual-battery maximum.
It has Magura MT-C four-piston hydraulic brakes with Bosch ABS on 203 mm rotors, a Suntour suspension fork and Schwalbe Pick-Up tires with Super Defense puncture protection. Tern lists 82.3 lb and a 463 lb maximum gross vehicle weight, with 220 lb on the rear rack.
A Kiox 300 colour display, the Bosch eBike Flow app with eBike Lock and a ConnectModule for GPS tracking and alarm (Flow+ subscription after a 12-month trial) are included. It assists to 20 mph with no throttle, and Tern claims 28 to 61 miles on one pack.
Colours are beetle blue, School Bus Yellow and Pearl White at one price. Every order ships to a Tern dealer for assembly and pickup.
Compared in
Questions answered from our data
How much does an electric bike cost?The 198 electric bikes we list run from $799 to $12,500, with a median of $1,947.
Are electric bikes UL certified?77 of the 198 electric bikes we list carry a UL 2849 listing we could look up by model.
How far can an electric bike go?171 of the 198 electric bikes we list claim 41 miles or more on a charge, each on its maker's own basis.
Which electric bikes have a battery over 1,000 Wh?10 of the 198 electric bikes we list have a battery over 1,000 Wh, as their makers rate it.
