Wisper Full Throttle Upgrade

Available for the following models as of 2025:

• Tailwind 806 Encore Folding eBike
• Tailwind 806 Folding Electric Bike
• Tailwind Comfort Crossbar E-Bike
• Tailwind Comfort Low Crossbar E-Bike
• Wisper 705 26″ Step-Through E-Bike
• Wayfarer H9 Hub-Drive Crossbar 43 V E-Bike
• Wayfarer H7 Hub-Drive Step-Through 43 V E-Bike
• Wisper 905 Crossbar Touring E-Bike
• Wisper 705 24″ Step-Through E-Bike

To meet Type Approval requirements, bikes must have front and rear lights operated from a single switch (such as these above).

Please Note: You must add this product to your cart to order a Wisper electric bike with a legal full throttle, otherwise you will be ordering a standard Wisper electric bike with pedal assist.

As of November 2025, lead times are approximately 10-12 weeks from your order date due to the time it takes to book a slot with the DVSA for type approval.

At Bike Yard Online, we can now deliver Wisper e-bikes without the throttle so you can start riding straight away instead of waiting 2–3 months for delivery. Once your bike is with you, contact us and we will arrange a DVSA slot to fit the legal throttle at a later date. When the time comes, just send the bike back and we will handle everything. If this suits you, please get in touch before ordering to confirm compatibility.

How It Works

When you order a Wisper full-throttle eBike, we’ll arrange for it to be tested by the DVSA and approved as an L1e category 250W Low Powered Moped. The bike needs to be inspected at an approved MVSA centre for Single Vehicle Approval (SVA) tests.

These tests ensure that the eBike complies with current Electrically Assisted Pedal Cycle (EAPC) regulations. After the test, we receive a British National Type Approval certificate, which is specific to your bike’s frame number. This certificate is valid for the bike's lifetime and doesn’t require renewal, unlike an MOT.

When not using the throttle, the bike functions like a standard eBike, with no impact on regular EAPC features.

The Regulations

L1e electric bikes are classified as Low Powered Mopeds, adhering to the Electrically Assisted Pedal Cycle Regulations of 1983, updated in 2015. The key requirements are:

• Must have pedals capable of propelling the bike.
• The electric motor must not exceed 250 watts and cannot power the bike beyond 15.5mph.

Once Type Approved, these bikes can legally be ridden on UK roads and private land at speeds up to 15.5mph using just the throttle.

Please Note: Using the throttle can reduce your e-bike’s range, so for maximum distance, it’s best to use it only when needed.