Tern GSD S10 Gen 3 Electric Cargo Bike

£5,900.00

The benchmark family cargo bike. Compact, stable and built to carry two kids plus the shopping. 210 kg rating, confident braking, and a huge accessory range. Test rides on our local hill in Crouch End. Call 020 8347 5534.

If you’ve seen a bike around London with two kids on the back, it’s probably a Tern GSD, and there is a good chance that we sold it! They are such awesome bikes, we love seeing them around, and helping our customers to get moving.

The GSD can take kids from 6 months old (parents choice!) and there are accommodation options for two youngsters, we’ve even got a customer in his 70’s who takes his wife to the opera on theirs…

If we want to talk sensible (and why not), then the warranty is superb, the bikes hardly depreciate, and we’re good at servicing and looking after them.

Our most popular model. If you’ve seen someone “on one of those bikes that carries two kids at the back”, it’s probably a Tern GSD, and quite likely it was purchased from our shop in Crouch End. Popular for good reason too, it’s got top-notch quality, a great ecosystem of accessories and backed up by a dealer network and warranty too, it’s not a bike just for this year, but for ten years.Gav, Butternut Bikes Owner

In stock in London. Set up for you in 24 hours. Test rides today.

Cycle to Work accepted

You can buy this bike through Cycle to Work. We take all the main schemes, and if your employer gives you a choice, we can point you towards the ones that keep fees lower for small shops like ours.

Depending on your tax band, Cycle to Work can save you up to around 45%. The bike costs the same for everyone – the saving comes from your tax and NI, not a shop discount.

Thinking about using a scheme?

See how it works
or get in touch and we’ll help you start the process.

Product Code: N/A SKU: TERN-GSD-S10 Categories: , , Tag: Brand:

Description

The Tern GSD S10 Gen 3 is the benchmark family cargo bike. It’s the model we recommend most often, because it hits the sweet spot between performance, safety, ease of use and long-term ownership.

With Bosch’s latest Smart System motor, confident derailleur gearing, and Bosch ABS braking, the S10 is designed for real-world family riding, steep hills, heavy loads, and stop-start city life.

If you want one GSD that does everything brilliantly, this is it.


Why the GSD S10 is our most popular GSD

The S10 is the most popular Gen 3 GSD for good reason. It’s the most balanced option in the range, combining modern Bosch tech, strong braking, and simple, reliable gearing.

Key highlights:

  • Bosch Cargo Line Smart System motor
    Powerful, natural assistance for heavy loads and steep North London hills, with Smart System integration for updates and tuning.

  • Shimano Deore 10-speed drivetrain
    Simple, robust gearing with a wide range for loaded riding, easy to service and familiar for most riders.

  • Bosch ABS braking (front wheel)
    Adds a major layer of safety and confidence when riding fully loaded.

  • Gen 3 heavy-duty GSD frame
    Up to 210 kg gross vehicle weight, with a rear rack rated for 100 kg and space for two kids or one adult passenger.

  • Dual battery ready
    Comes with a large Bosch battery and can take a second battery for big mileage and heavy daily use.


Bosch ABS on the GSD S10, not a gimmick

We’ll be honest, when Bosch ABS first appeared on cargo bikes, we were a bit sceptical. It sounded like one of those things that looked good on a spec sheet but wouldn’t make much difference in the real world.

Having ridden the GSD S10 a lot, fully loaded, on wet roads, steep descents and even loose surfaces, we can say it’s genuinely brilliant.

ABS helps prevent the front wheel locking under hard braking, which means you keep steering control when it really matters. On a heavy, fully-loaded family cargo bike, that’s a big deal.

It’s not just safer, it’s actually enjoyable to ride. You can brake harder and later with more confidence, especially on steep North London hills or when the bike is fully loaded with kids and kit.

We’ve got a great local test route where you can really feel the difference, including some gravel and rougher surfaces. Try the S10 back-to-back with a non-ABS GSD and you’ll immediately understand why we rate it so highly.


Choosing between the Gen 3 GSD models

The Gen 3 GSD range now includes several options at different price points and with different drivetrains. The S10 is our most popular all-rounder, with Bosch Smart System, derailleur gears, and Bosch ABS braking.

If you’re choosing between the S10, the belt-drive P00, or the lower-priced P10, we’re happy to set up proper back-to-back test rides so you can feel the differences for yourself on real hills and real roads.


How the GSD S10 compares

GSD Gen 3 comparison

Model Price Drivetrain Motor System ABS Best for
GSD R14 £8,900 Rohloff hub + belt Bosch Smart System Yes Ultimate, no-compromise setup
GSD S10 £5,900 Shimano 10-speed Bosch Smart System Yes Best all-rounder, most popular
GSD P00 £5,900 Enviolo hub + belt Bosch Smart System No Ultra-low maintenance
GSD P10 £4,700 Shimano 10-speed Bosch System 2 No Best value entry to GSD

If you’re torn between them, we can talk you through what really matters for your riding, routes and family setup.


Built for serious family use

The GSD is designed around everyday family life, as well as adventures on the weekend! It’s also great to ride without the kids on the back (unlike a lot of cargo bikes)

That means:

  • Easy to handle in traffic and tight streets

  • Stable at low speed when fully loaded

  • Compact footprint for storage and locking up

  • Huge range of child seats, benches, rails and accessories

  • Strong resale values and long-term support

It’s definitely a lot easier to handle off the bike than a front-loader like an Urban Arrow, especially in tight spaces, sheds and bike stores.


Ownership, servicing and long-term value

If we want to talk sensible (and why not), the warranty is superb, residual values are strong, and we’re very good at keeping these bikes running for the long haul.

We see plenty of older GSDs still doing daily school runs years later. These are bikes designed to be used hard and looked after properly.


Test ride the GSD S10 at Butternut Bikes

A test ride makes all the difference with a bike like this. You can feel the motor, the handling, and especially the ABS braking on real hills and real roads.

👉 Book a test ride at Butternut Bikes in Crouch End, try it on our local hills and test routes, and let us set it up properly for your kids, kit and commute. Call us on 020 8347 5534 or pop in to see if the GSD S10 is the right family cargo bike for you.

Additional information

Weight 37.32 kg
Dimensions 185 × 50 × 88 cm
Colour

Satin Midnight Blue, Olive Green, School Bus Yellow, Pearl White

Key specifications

Model Tern GSD S10 Gen 3 (Longtail electric cargo bike)
Motor Bosch Cargo Line, 85 Nm (Smart System)
Battery 545 Wh as standard, dual-battery ready
Drivetrain Shimano Deore 1×10
Brakes Hydraulic with Bosch ABS on the front
Load rating Max GVW 210 kg; rear rack up to 100 kg
Rider size Approx. 150–200 cm
Wheels & tyres 20″ with Schwalbe Pick-Up cargo tyres
Suspension SR Suntour Mobie 34 cargo fork; suspension seatpost
Lighting High-output front light and integrated brake light
Included Mudguards, folding dual kickstand, rear wheel protectors, folding footrests, lights
Storage Vertical parking; fold-down cockpit for hallways and lifts
Warranty 10-year frame and fork (Bosch system covered separately)

Colours in stock & GTINs

  • Satin Midnight Blue / Grey — UPC 810067163644
  • Olive Green / Dark Grey — UPC 810067163552
  • School Bus Yellow / Dark Grey — UPC 810067163521
  • Pearl White / Dark Grey — UPC 810067163491
Book a test ride
Bring the kids and try the hill outside the shop. Call 020 8347 5534

Specs and availability can change. If you’re choosing between colours or kits, ring us on 020 8347 5534 and we’ll give you straight answers.