Tannus Armour 20'' - Puncture Prevention System - 20 x (3-4.0) Insert + Schrader Inner Tube - Any Tannus system bought through bathoutdoors.co.uk will be installed on Rad Power Bikes customers free of charge. Please email sales@bathoutdoors.co.uk to organise a booking in the workshop. RAD POWER BIKES COMPATIBILITY: RadRunner 1, 2 & 3 RadRunner Plus RadExpand
Tannus Armour Tyre Insert – Ultimate Puncture Protection - Fafreese E-Bike Compatible
Tannus Armour Tyre Insert – Ultimate Puncture Protection - Fafreese E-Bike Compatible
Tannus Armour 20'' - Puncture Prevention System - 20 x (3-4.0) Insert + Schrader Inner Tube - Any Tannus system bought through bathoutdoors.co.uk will be installed on Rad Power Bikes customers free of charge. Please email sales@bathoutdoors.co.uk to organise a booking in the workshop. RAD POWER BIKES COMPATIBILITY: RadRunner 1, 2 & 3 RadRunner Plus RadExpand
Tannus Armour Tyre Insert – Ultimate Puncture Protection - Fafreese E-Bike Compatible
Tannus Armour Tyre Insert – Ultimate Puncture Protection - Fafreese E-Bike Compatible

Tannus Armour Tyre Insert – Ultimate Puncture Protection - Fafreese E-Bike Compatible

  • Sale
  • £68.00
VAT included. Shipping calculated at checkout.

Fafreese Compatibility (Double-check your Fafreeese tyre size before purchasing - message us if you are not sure!)

  • F20+
  • F20 Flex
  • F20 Pro
What’s Included
Single Wheel - 1 x Tannus Armour Insert & 1 x Inner Tube.
Front & Rear Wheel - 2 x Tannus Armour Inserts & 2 x Inner Tubes.

We also offer a Tannus installation service at our shop, 'Bath Outdoors' based in Central Bath, Somerset. We charge £30 to install Front/Rear Wheels. Message us for more information.

Product Overview
Upgrade your ride and eliminate the headache of roadside flats! Tannus Armour is the ultimate 360-degree puncture-protection insert that sits between your outer tyre and inner tube. Made from a patented flexible polymer foam compound called Aither, it absorbs shock, enhances grip, and stops sharp objects dead in their tracks.

Why It’s a Game-Changer for Fafreese E-Bikes
Fafreese e-bikes (like the F20+, F20 Flex and F20 Pro) are fast, powerful, and heavier than standard bicycles. Heavier bikes mean harder impacts and a higher risk of pinch flats or glass punctures. Tannus Armour solves these specific e-bike problems:

  • Virtually Eliminates Flats: Offers up to 15mm of protection on the tread area, preventing thorns, glass, and nails from reaching your inner tube.
  • Run-Flat Capability: In the unlikely event you do get a flat, the dense foam allows you to ride at low speeds (up to 10-15 km/h) to get home safely without destroying your expensive motor rim or tyre.
  • Better Handling & Smoother Ride: The extra sidewall stability cushions your ride against potholes and rough terrain, giving you more confidence when cornering at higher e-bike speeds.
  • Enhanced Grip: Allows you to run slightly lower tyre pressures (PSI) for better traction on wet or gravel roads without the fear of rim strikes.
 

Key Features
  • 360° protection (15mm crown / 5mm sidewall)
  • Lightweight eco-friendly foam technology
  • Easy installation (fits standard inner tubes—remember to check sizing/use a slightly smaller tube if required by volume)
  • Protects rims from heavy impacts and big drops 

Why buy from Bath Outdoors?

Unlike many online retailers, Bath Outdoors is an independent bike shop with a team of experienced mechanics and over 60 years of combined experience in the bicycle and e-bike industry.

We supply quality replacement components for a range of Fafreese e-bike models from established, quality-assured manufacturers, including KMC, Shimano and SRAM. We select components based on their performance, reliability and durability, rather than simply choosing the cheapest available option.

Importantly, these are the types of quality components our own mechanics use when servicing and repairing customers' e-bikes.

Using good-quality replacement components can provide better long-term value. Durable components can help maintain reliable shifting and drivetrain performance while potentially reducing the frequency of component replacement and helping to keep maintenance costs under control.

Buy with confidence from an independent specialist bike shop that uses the quality components we sell in our own workshop.