Tern GSD S10 Compact Utility Electric Bike

  • £3,999.99
Item in Stock | Usually dispatched within 24 hours
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Enormously Useful. Surprisingly Small.
The GSD is designed to carry two kids, a week’s worth of groceries, or 180 kg of cargo, but it’s only 180 cm long—the same length as a standard ebike. With Tern’s best-in-class folding technology, it packs down small enough to fit in a VW Touran or an urban apartment. Plus, it adjusts to fit riders from 150 – 195 cm—so mum, dad and the kids can all share it.

A Utility Bike Designed to Fit Your Life.

Despite everything it can haul, the GSD is actually the same length as a regular ebike, so it fits anywhere a standard ebike can. But there are lots of places a standard ebike doesn’t fit. That’s why Tern designed it to pack down to 1/3rd its volume in only 10 seconds. That means you can store your utility bike in your urban apartment, fit it in the elevator, or stash it in a train for weekend getaways.

Carries the Family

With room for up to two Thule Maxi child seats, plus grocery space to spare, the GSD lets you ditch the minivan. The low step-thru frame makes getting on and off much safer, and with an extra low centre of gravity, the GSD is stable and steady.

Fits the Whole Family Too

Minivans don’t come in S, M, L & XL to fit the driver, so why do bicycles? The GSD is designed to be shared by a family. It adjusts to fit mum, dad or the kids—any rider from 150 – 195 cm. Best of all, thanks to Tern’s adjustable stem, and compact geometry, adjusting the bike only takes seconds.

Carry More
The GSD boasts cargo-bike capacity, despite its city-bike footprint—up to 180 kg (400 lbs.) including rider. Build it up with Cargo Hold Panniers and the Shortbed and Transporteur racks, to carry industrial strength Eurocrates, a week of groceries or a family picnic plus the kitchen sink.

Specifications:

  • Frame: Tern GSD, 7005-Al, patented MultiTruss design
  • Fork: Tern GSD, 1.5" Taper, Boost Thru-axle, 110mm, 6061-AL
  • Motor: Bosch Performance, 36 V/250 W, max speed 25 kph
  • Battery: Dual Battery Slots, 400wh/500wh/900wh (second battery sold separately)
  • Transmission: Shimano Deore, 1x10 spd
  • Brakes: Magura MT5, 4-piston hydraulic disc, 180 mm rotor
  • Handlebars: Tern Sweep, 27 degrees, 6061-Al, Tern Andros adapted
  • Wheelset: Tern Atlas, heavy duty cargo wheels
  • Wheel Size: 20"
  • Tyres: Tern Custom Schwalbe Super Moto-X, 62-406, Green Guard puncture protection, Reflex

Note: These are Tern’s standard model specifications. We do our best to ensure that the specifications listed here accurately reflect the exact parts found on Tern’s production bikes. However, component changes do occur for various reasons and there may be brief delays on site updates. Tern reserve the right to make component changes without prior notification, which may cause discrepancies with the information listed on the web. Images are for illustrative purposes only.

Why the GSD?

Bosch Motor and Battery
Riding with kids on the back, uphill? No problem. There’s a reason Bosch is the global leader in e-bike systems—and it’s not just their outstanding performance. Tern work with Bosch because they offer the best service network, remarkable testing, and next-level quality control.

Cargo Hold Panniers
Think of the Cargo Hold panniers as a trunk for your bike. Keep your lock, rain jacket, and tool kit inside so they’re always ready. And then load them up with a week’s worth of groceries, or a tent, balance bike, cooler and toys for a weekend trip to the park. Use the lid when it’s raining or roll it up and out of the way when you’ve got extra large stuff to carry.

Yepp, It'll Fit Two
Thule Maxi child seats are the best in the business. The GSD is designed to fit two, with plenty of foot clearance for the rider. No special adapters needed.

Elevator Friendly
Cargo bikes are most useful in cities (high density of things to see, do and move), but they’re also harder to manage and store (small apartments and bike theft). Most people don’t have space for a cargo bike. Tern designed the GSD to fit small elevators, so you can keep it indoors. Tern even designed the rack to let the bike stand vertically, for compact and stable storage.

All Day Battery
The GSD is one of the few bikes equipped with Bosch’s latest Dual-Battery technology. You can connect up to two batteries for a range of over 250km. Tour from dusk to dawn, or commute for weeks on a single charge.

Friends Get Benefits
The GSD brings new meaning to “riding with a friend.” Tern's suite of ‘Sidekick’ accessories, including a KLICKfix seat cushion, retractable foot pegs, and an underseat handle, let two adults ride together in comfort. With Bosch power and an ultra-low center of gravity, you might not even notice your passenger.

See-and-Be-Seen Geometry
The GSD features a relaxed geometry that puts the rider in an upright, comfortable position. Swept back handlebars and ergonomic grips take a lot of stress off the neck, shoulders, and wrists. You’re also able to see (and be seen) over the tops of most cars, which is a great benefit in traffic. With Bosch power, comfort and performance can coexist.

Boosted Components
Tern use burly and dependable, cutting edge mountain bike technology to make the GSD superlatively strong. Magura 4 piston disc brakes, custom 62 mm Schwalbe Super Moto-X tyres, Boost thru-axle hubs, and custom 36mm wide double-joined rims, provide the rock-solid foundation for a bike spec’d to carry 180 kg.

Low and Steady
The GSD is engineered from the ground up for maximum stability, loaded and unloaded. Tern designed it with a 125 cm wheelbase—25% longer than standard ebikes—for confident and balanced handling. Thanks to small wheels, a low frame, and centrally mounted motor, the bike boasts an extremely low centre of gravity. Altogether, the ride is a revelation.

Safety First (Second and Third)
Cycling is safer when you move at the speed of city traffic. Fast acceleration is a given with a Bosch Performance motor combined with smaller wheels. Tern have developed custom, virtually flat-proof, Schwalbe tyres to give sure-footed stability on even the nastiest roads. Add super-bright LED lights, reflective decals, and a see-and-be-seen riding position, and you have a bike optimised for safety.

Stable Standing
Parents know that loading kids on and off a bike is tricky business. That’s where the German-made Hebie kickstand comes in. It supports up to 80 kg, with two widely spaced legs for super stable support. So go ahead, breathe easy and use both hands to load (and lock) your precious cargo.

Sell the RV
The GSD is an awesome touring machine. It’s got room for six Ortlieb bags (4 on the rear rack and 2 on the front), and a range of up to 250km. A bit of careful packing lets you bring a full touring load, together with a little passenger. That means two GSDs let a family of four tour the world, no bike trailer required.

Reviews:
“The Tern GSD is a terrific bike for everyday life. A compact miracle on small wheels.” - ElektroRAD, leading German ebike publication

We hope that you find our website easy to use but if you do have any questions at all please feel free to call our sales team on 0208 508 0682 or email info@tritoncycles.co.uk for advice.

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0% finance available on selected bikes. Spread the cost of your new bike over 6-36 months. Min. 10% deposit. Terms and Conditions apply.

We also accept Cyclescheme vouchers, for details of how to place an order with a voucher please contact our sales team on 0208 508 0682.

All purchases and refunds will be processed in Sterling (GBP). We are not liable for any currency fluctuations. Please be aware that this may result in your refund being less or more than what you originally paid in your local currency.

Free Delivery - Delivery is free on orders over £25, with delivery starting from £3.95 for orders below this value. There are surcharges for international deliveries, off-shore deliveries and some areas of the UK. Accurate delivery costs will be provided at checkout where applicable. Our dispatch time for in-stock items is usually 24-48 hours and delivery typically takes a further 2-3 working days. Please ensure you select the correct delivery options to display the correct postage cost to avoid any delay on your order. Not selecting the correct options may incur additional charges (Please see 'Courier Selection' for more information).

Bikes - All bikes are checked in our workshop prior to dispatch. Bike orders are typically dispatched within 48 hours of your order. Please note - most bikes are delivered partially assembled - this varies from model to model, please call to confirm what building is required prior to ordering.

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Is your country not listed on our website? Feel free to get in contact with us and we will quote you a price! Message us on our Contact Us page and make sure to include your postal code/zip code. We will not be able to delivery to PO BOX addresses.

We will always try our best to meet agreed delivery times, however we cannot guarantee them due to third party couriers or workshop load. We shall not be liable for any consequential losses due to delayed delivery times.

Courier Selection - Choosing the incorrect shipping option for your country/location may cause delays as we may have to amend the order and apply any additional shipping fees. Any order cancellations due to a refusal to pay the correct shipping fees may incur additional processing charges.

Billing & Delivery Addresses - Please ensure your billing & delivery address is correct when placing your order. We will do our best to ensure that all our customers receive their order but we are not responsible for any mis-delivery if the delivery address is incorrect.

Stock Check - The majority of our products are usually in stock and we try to keep our stock levels as up-to-date and as accurate as possible. However sometimes our system may not be updated in time and a product may be out of stock despite the product page showing it as 'In Stock'. If you are interested in a product and would like to double check the availability of it, please feel free to contact us before placing your order.

Dispatched Dates/Due in Dates (Pre-orders) - We try to provide as accurate as possible information on the arrival of our pre-order products. The dispatched dates/due in dates shown are an estimate of when the products will be available as provided by our suppliers. The dispatched dates/due in dates are subject to change. We will do our best to keep our customers updated.

At Triton Cycles we aim to provide a returns service that is simple and hassle-free.

Should you need to return anything to us, it is very important that you telephone us first to advise us of your intention and the reason why you wish to return the goods. If you're not completely satisfied with an item you may return it within 14 days of purchase, and as long as the item isn't fitted or used we're happy to receive it back for a refund or exchange. Return shipping costs in this instance are non-refundable.

If the item is being returned as a result of our error i.e. damaged, defective, wrong item sent etc, we will refund Royal Mail First Class or Standard Parcel postage costs. If this is the case please include a copy of your purchase receipt when you return the goods for inspection. Please DO NOT sign for goods if you think that they are damaged, or the packaging has been tampered with. Instead, refuse to accept the delivery and contact us immediately(within 3 working days) so that we can take the matter up with our courier. Replacements will be sent to you as soon as possible. Signing for goods later found to be unacceptably damaged in transit complicates negotiations with the courier in dealing with your complaint. However, if a minor component is missing or broken(e.g. a reflector) please DO NOT return the whole bike. Simply contact us and we will replace the part as soon as possible. Please DO NOT discard any original packaging until you are fully satisfied with your purchase. Should you need to return a bicycle, couriers will not transport a machine not in the original or suitable packaging. Warranty Claims: All goods purchased from Triton are covered by a full warranty and generally covers manufacturing faults and defects including poor workmanship. If you think your item is faulty and would like to make a warranty claim then please phone/email us before returning any goods - we may be able to solve your problem without you incurring any postage costs.

All purchases and refunds will be processed in Sterling (GBP). We are not liable for any currency fluctuations. Please be aware that this may result in your refund being less or more than what you originally paid in your local currency.

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