Technical Specification
Motor: Wisper High efficiency, 250W hi torque brushless motor, easily ridden past 15.5mph with almost no motor drag
Throttle: Standard: Thumb throttle to 4mph (6km/h) and Thumb throttle to 15.5mph (25km/h) when pedalling. Full throttle option available.
Throttle only range: Using your Wisper bike on throttle only will reduce your range by up to 30%. If your bike has been upgraded so it works on the throttle only, we still suggest pedalling when you are able to do so. Use the throttle only function when you need to rest or to help you pull away when setting off.
Battery: Lithium standard slimline 360Wh or long range 540Wh Lithium
Max Range 360Wh: 50 miles (80km)
Max Range 540Wh: 70 miles (110km)
Controls: Wisper Back lit LCD display with remote controls
Weight: 360Wh: 19Kg 540Wh: 20kg
Frame: Wisper Tailwind 6061 alloy hand welded, custom butted tubing / tapered headtube / BB68 / Internal cable routing / replaceable hanger
Mudguards: Available
Frame Size: 19″ 48cm
Colour: Black or Stone
Fork: RockShox Judy 100mm travel with remote lock out
Chain-set: Black alloy 48T chainring Crank length 170mm
Rear Derailleur: Shimano Alivio Shadow design 9 speed derailleur
Shifter: Shimano Alivio 9 speed M3100 rapidfire shifter
Cassette: Shimano CS HG400 11-34T
Chain: KMC X9 rust resist 9 speed
Stem: Alloy 6061 oversized 31.8mm / 1 1/8″ 6° angle
Handlebar: Alloy 6061 Flat 9° 740mm
Seat post: Black anodised alloy 30.9 x 350mm
Saddle: Wisper Comfort
Brakes: Wisper Hydraulic 180mm disc front and 160mm disc rear
Wheels: Alloy black anodised double wall 27.5” x 1.24″ (31.4mm)
Tyres: Goodyear Peak 27.5×2.25
Max Load: including luggage 21 Stone / 135kg
