Wisper Tailwind City Crossbar Electric Bike

£1,804.99 £1,899.99

The Wisper Tailwind Crossbar City Electric Bike has all the features you need for a smooth ride in the city. It boasts a 360Wh or 540Wh battery, 250W motor, Shimano 9-speed gear system and hydraulic brakes. With a range of up to 110 km per charge, this e-bike can go the distance and weighing less than 20kg in weight. 

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
• Frame Size: 19″ 48cm
Colour: Black or Stone
• Fork: Alloy twin blade
• Chain-set: Black alloy 48T chainring Crank length
170mm
• Rear Derailleur: Shimano Alivio Shadow design 9 speed derailleur
• Shifter: Shimano Alivio 9 speed M3100 rapid-fire
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: Kenda 27.5” 2.2 high puncture resistance
with reflector
• Max Load: including luggage 21 Stone / 135kg

Power & Performance
Battery
Battery
Batteries come in different voltages (V) and amp hours (ah).

Amp hours refers to the amount of electrical charge the battery can product in an hour, while voltage determines (in part) the power output of the battery.

Most e-bikes and e-scooters will have lithium-ion batteries.
360Wh or 540Wh battery
Motor
Motor
The motor is what provides assistance. The number of Watts produced by the motor (e.g. 250W), refers to the power output of the motor. The higher the wattage of the motor, the more powerful it is.
In the UK, the maximum legal power output of an e-bike for use on public roads and footpaths is 250W.
Wisper High efficiency, 250W hi torque brushless motor
Max Speed
Max Speed
The maximum speed that an e-bike can go when pedalled.
In the UK, the legal speed limit of e-bikes is 15.5mph.
15.5mph
Range
Range
The "Range" refers to the number of miles that the battery will assist you while you cycle.

The range of any e-bike or e-scooter is highly sensitive to the weight of the rider, style of riding, terrain traversed or level of assistance used, to name a few.
110 km
Gears
Gears
Having gears, from a company such as Shimano, makes cycling up and over hills easier.
Cycling in a lower gear means less pedalling effort and less speed.
Cycling in a higher gear means more pedalling effort and more speed.

Most e-bikes will come with 7 or 8 gears.
Shimano 9-speed gear
Build
Net Weight
Net Weight
The weight of the product (including the battery).
20kg
Brakes
Brakes
Hydraulic disk brakes on e-bikes use fluid pressure for actuation, providing smoother and more precise braking, while mechanical disk brakes use a cable system for actuation, offering a simpler design but potentially requiring more maintenance.
Wisper Hydraulic 180mm disc front and 160mm disc rear
Front Suspension
Front Suspension
Having front suspension soaks up bumps (like potholes!) and makes for a smoother ride.
None
Rear Suspension
Rear Suspension
Like front suspension, rear suspension makes for a smoother ride by absorbing bumps.
None
Tyres
Tyres
Tyres come in a variety of sizes and compounds.
Smoother tyres are better for the road, while tyres with a more pronounced tread are better for gravel or off-road riding.
Kenda 27.5” 2.2 high puncture resistance with reflector
Max Rider Weight
Max Rider Weight
The maximum weight the product can handle when ridden.
135kg
Features
Display
Display
E-bikes and e-scooters have a display to show, among other things, the e-bike or e-scooter's projected range, level of assistance and total distance covered.

Displays can be black and white, colour, waterproof or non-waterproof.
Wisper Back lit LCD display with remote controls