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Electric bikes

Compare Tern GSD S10 vs. Tern HSD S8i

This is a side-by-side comparison of the specs of the GSD S10 vs. the HSD S8i. Differences are highlighted in yellow.
Item GSD S10 HSD S8i
Item image Item image
Electric? Yes [x] Yes [x]
Battery capacity 900Wh [x] / 500Wh [x] / 400Wh [x] 400Wh [x]
Weight 27.06kg [x] 25.4kg [x]
Colour Silver-Blue [x] / Orange [x] / Mango [x] / Black [x] / Beetle Blue [x] Limon Tundra [x] / HSD Red [x] / Black [x]
Fork aluminium strength 7005 [x]
Power 250W [x]
Maximum gross vehicle weight 200kg [x] 170kg [x]
Suggested rider height to 195m [x] / from 150m [x] to 195m [x] / from 150m [x]
Frame length 181 [x]
Folded length 173cm [x] 163cm [x]
Maximum fork load 170 [x]
Maximum rider weight 120kg [x] 120kg [x]
Maximum range 110km [x] (400Wh option) 110km [x]
Highest gear 95 [x] 95 [x]
Folded height 83cm [x] 86cm [x]
Maximum torque 63Nm [x]
Minimum range 50km [x] (400Wh option) 42km [x]
Folded width 40.5cm [x] 40cm [x]
Voltage 36V [x]
Lowest gear 29 [x] 31 [x]
Maximum speed 25km/h [x] 25km/h [x]
Wheel size 20" [x] 20" [x]
Number of gears 10 [x]
Folding time 5s [x] 5s [x]
Battery slots 2 [x] 1 [x]
Folding? Yes [x] Yes [x]
Suspension? No [x] Yes [x]
Folding handlepost? Yes [x]
Kickstand Heavy-duty double stand, 80 kg capacity [x] Ursus, rear mount [x]
Pedals Urban with non-slip surface, sealed bearings [x] Urban with non-slip surface [x]
Battery position Under saddle [x] Under saddle [x]
Tyres Tern x Schwalbe Super Moto-X, 62-406, Green Guard puncture protection, Reflex [x] Schwalbe Big Ben, 55-406, RaceGuard puncture protection, ECE-R75 ebike certification [x]
Front light Tern Valo Direct, integrated, 41 lux/150 lumens [x] Tern Valo 2.1, 45 lux/190 lumens [x]
Handlepost Tern Physis 3D (G2), 3D forged, 5 patented technologies, 12°, 290 mm [x] Tern Physis 3D (G2), 3D forged, 5 patented technologies, 12°, 290 mm [x]
Crankset Tern GSD custom, forged 6061-AL DH crankarm [x] Tern HSD custom, Gates CDX CNC machined beltring [x]
Fork Tern GSD, 1.5" Taper, Boost Thru-Axle, 110 mm, 7005-AL [x] Suntour custom for Tern, 1.5" tapered Chromoly steerer, 32 mm stanchions, Thru-axle, 70 mm travel [x]
Headset Tern Flux Pro Taper, 1.5", angular contact bearings, Physis integrated [x] Tern Flux Pro Taper, 1.5", angular contact bearings, Physis integrated [x]
Seatpost clamp Tern Collar, 6061-AL, 2pc [x]
Rims Tern Atlas, ultra wide 36 mm, dual reinforced joint [x] Tern Atlas H, wide 35 mm [x]
Front wheel Tern Atlas H, cargo wheel [x]
Rear wheel Tern Atlas H, cargo wheel [x]
Rear hub Tern Atlas, Boost thru-axle, Syntace X-12 standard, ebike reinforced design [x] Shimano Nexus 8 [x]
Front hub Tern Atlas, Boost thru-axle [x] Novatec, Thru-axle, sealed bearings [x]
Stem Tern Andros (G2), adjustable, forged construction, patented technology [x] Tern Andros (G2), adjustable, forged construction, patented technology [x]
Spokes and nipples Stainless steel, 13G [x] Stainless steel [x]
Fenders SplashGuard, stainless hardware [x] SKS, stainless hardware [x]
Chainguard SKS Chainblade [x] Gates integrated [x]
Rear derailleur Shimano Deore Shadow [x]
Cassette and freewheel Shimano 11-36T, 10 spd [x] Gates CDX, precision CNC machined cog [x]
Shifter cable and housing Jagwire LEX-SL, slick treatment, alloy ferrules [x] Shimano [x]
Pedal holder No [x] No [x]
Bottom bracket Motor integrated [x] Motor integrated [x]
Front brake Magura MT5, 4-piston hydraulic disc, 180 mm rotor [x] Magura MT4, hydraulic disc, 180 mm rotor [x]
Rear brake Magura MT5, 4-piston hydraulic disc, 180 mm rotor [x] Magura MT4, hydraulic disc, 160 mm rotor [x]
Brake cable and housing Magura, hydraulic [x]
Brake levers Magura, hydraulic [x] Magura, hydraulic [x]
Brake application mechanism Hydraulic [x]
Rear light Herrmans H-Trace, for eBike [x] Herrmans H-Trace, for eBike [x]
Chain 10 spd, DHT for eBike, GST corrosion resistant coating [x] Gates Carbon Drive CDX belt [x]
Grips Ergon GC10, for swept bar [x] Ergon [x]
Luggage socket Combo Mount [x] Combo Mount [x]
Fork material Aluminium [x] Chromoly [x]
Charger Bosch Standard Charger [x] Bosch Standard Charger [x]
Display Bosch Purion, 4 mode selectable, walk assist [x] Bosch Purion, 4 mode selectable, walk assist [x]
Battery Bosch Dual Battery system, 400wh/500wh/900wh [x] Bosch PowerPack 400 [x]
Motor Bosch Performance [x] Bosch Active Line Plus (Gen 3) [x]
Bell material Aluminum [x] Aluminum [x]
Crankset material Aluminium [x]
Lock ABUS 5650L, keyed-alike with Bosch battery [x]
Gear configuration 1 x 10 [x] 1 x 8 [x]
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