HSD S9i: Our Best Cargo eBike for Small Families
MIGHTY BUT MINI
What makes it an S9i?
- Bosch Performance Line PX motor delivers up to 90 Nm of torque and 600% pedal assist with Performance Upgrade 2.0
- Bosch Smart System with ConnectModule allows access to advanced features like eBike Alarm, GPS tracking, and easy control via Kiox 300 display and LED Remote
- Bosch eShift lets you shift under load or at a stop, set your preferred starting gear, and offers a wireless design for less maintenance
- 3x3 NINE 9-speed internal gear hub with a best-in-class 554% range for efficient, low-maintenance shifting
- Silent, smooth, and virtually maintenance-free Gates Belt Drive
- Bosch PowerPack 545 battery provides long range of up to 103 km (64 mi)
HSD Highlights
- Best-in-class hauling capacity, rated to a maximum gross vehicle weight of 190 kg (419 lb) with a rear rack load capacity of 80 kg (176 lb)
- Optimized frame geometry, a longer wheelbase, and a low center of gravity keep rides stable, even with heavy loads or at higher speeds
- Magura hydraulic disc brakes deliver precise and responsive stopping power
- Custom Suntour suspension fork absorbs road shocks for a smoother, more comfortable ride
- Easy-sharing cockpit adjusts without tools to fit riders 153 - 205 cm (5'0" - 6'9") tall and weighing up to 130 kg (287 lb)
- Third-party tested and certified to UL 2849 (complete e-bike system) and EN 17860 (frame and fork, 190 kg) for proven cargo e-bike safety and reliability
Gallery
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Specifications
General Info
- Generation
- Gen 3
- Color(s)
- Gloss Basalt
- Speeds
- 1 x 9
- Weight
- 28.9 kg (63.7 lb)
- Gear Inches
- 20" - 109" (1.56 - 8.67 m)
- Frame Sizes
- One size
- Bike Size
- 174 × 112 × 68 cm (68.5 × 44.1 × 26.8 in)
- Wheelbase
- 120 cm (47.2 in)
- Standover Height
- 48.5 cm (19.1 in)
- Folding Size
- 166 × 42 × 87 cm (65.4 × 16.5 × 34.3 in)
- Folding Time
- 5 seconds
- Distance: Seatpost to Handlebar
- 52 - 59 cm (20.5 - 23.2 in)
- Distance: Saddle to Pedal
- 76 - 110 cm (29.9 - 43.3 in)
- Suggested Rider Height
- 153 - 205 cm (60.2 - 80.7 in)
- Max Gross Vehicle Weight
- 190 kg (418.9 lb)
- Max Rider Weight
- 130 kg (286.6 lb)
Frame
- Frame
- Tern HSD, 6061-AL, patented design, EN17860 certified: 190 kg
- Fork
- Suntour custom for Tern, 34 mm stanchions, Thru-axle, EN17860 certified: 190 kg
Cockpit
- Handlepost
- Tern Physis 3D, 3D forged, 5 patented technologies, 12°, 320 mm
- Stem
- Tern Andros, adjustable, forged construction, patented technology
- Headset
- Tern Flux Pro Taper by FSA, 1.5", angular contact bearings, Physis integrated
- Handlebar
- Tern Sweep, 6061-AL, Tern Andros adapted
- Grips/Bar Tape
- Ergon
- Saddle
- Tern by Velo
- Seatpost
- Tern VLT 40/34.9mm, with Cane Creek suspension and LightAction levers
- Seatpost Clamp
- Tern Collar
Brakes
- Front Brake
- Magura MT4, hydraulic disc, 180 mm rotor
- Rear Brake
- Magura MT4, hydraulic disc, 180 mm rotor
- Brake Levers
- Magura, hydraulic disc
- Brake Cable & Housing
- Magura, hydraulic disc
Wheels
- Front Wheel
- Tern Atlas H, cargo wheel
- Rear Wheel
- Tern Atlas H, cargo wheel
- Front Hub
- Tern Atlas, Boost Thru-Axle, sealed cartridge bearings
- Rear Hub
- 3x3 NINE, 9 spd, w/ Bosch eShift
- Spokes & Nipples
- Stainless steel, double-butted
- Rims
- Tern Atlas H, cargo
- Tyres
- Schwalbe Big Ben Plus, 55-406, Green Guard puncture protection, Reflex
Transmission
- Shifter
- 3x3 CMD, wireless e-shifter, w/ Bosch eShift
- Crankset
- Tern HSD, Gates CDX CNC machined beltring
- Cassette/Freewheel
- Gates CDX, precision CNC machined cog
- Bottom Bracket
- Motor integrated
- Chain
- Gates Carbon Drive CDX belt
- Pedals
- Urban with non-slip surface, sealed bearings
- Shifter Cable & Housing
- Wireless
E-System
- Motor
- Bosch Performance PX (BDU34, 600% Assist, 90 Nm Torque, max speed 25 km/h (EU)
- Battery
- Bosch PowerPack 545
- Display
- Bosch Kiox 300 w/ LED remote, connectivity with Bosch eBike Flow app, electronic bike lock
- Range
- 545 Wh: 56-103 km (35-64 mi)
- Charger
- Fast Charging, 220V, 4A (EU); 100-240V, 4A (US)
- Connect Module
- Bosch Connect Module with GPS/GSM connectivity & anti-theft alarm when subscribed to Flow+; free 12-month trial upon activation
Bells & Whistles
- Bell
- Pitch Plus, brass
- Chainguard
- Tern Custom, full chain cover
- Kickstand
- Ursus, rear mount
- Luggage Socket
- Tern Combo Mount
- Front Light
- Herrmans, 240 lumens
- Rear Light
- Herrmans LED
- Fenders
- Aluminum, stainless hardware
- Rack
- Atlas H rack, 6 point mounting, ISO 11243:2023 certification: 80 kg
- Frame Lock
- AXA, keyed-alike with Bosch battery
Please note: These are the manufacturer’s standard specifications for this model. Quoted weight and folded dimensions may not include racks, mudguards or other accessories. Specification for UK-supplied bikes can differ slightly from other markets. We do our best to keep the details here accurate, but Tern may change components from time to time and updates on this page can lag briefly. Component changes may be made without prior notice, so the bike you receive may differ in small ways from the information listed here.
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