Plews Tyres - EN1 GRAND PRIX - FIM Regulation Enduro Rear Tire - Risk Racing

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Plews Tyres - EN1 GRAND PRIX - FIM Regulation Enduro Rear Tire

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Plews Money Back Guarantee
Money Back Guarantee Details

In order to qualify for a refund under our Money Back Guarantee for tire purchases, the buyer must adhere to the following conditions:

Tread Depth Requirement:
Tires must have a minimum of 80% tread depth remaining at the time of return. Tread depth will be measured at the shallowest point of the tire grooves.
Timeframe for Return:
The return must be initiated within 30 days of the original purchase date.
Proof of Purchase:
A valid proof of purchase, such as the original sales receipt or invoice, must be provided when initiating the return. Money back guarantee only applies to tires purchase directly through Risk Racing - we can't offer this if purchased through dealers or 3rd parties
Return Authorization:
Prior to returning the tires, the buyer must obtain authorization from RISK Racing Customer Service. Authorization can be requested by contacting our dedicated customer support team at
Return Shipping Costs:
The buyer is responsible for all return shipping costs unless otherwise specified by RISK Racing.
Inspection Period:
Once the returned tires are received, RISK Racing will conduct a thorough inspection to ensure compliance with the specified requirements. Refunds will be processed within 5 business days upon successful verification.
Refund Method:
Refunds will be issued using the original payment method used for the purchase.
This Money Back Guarantee does not cover tires that have been misused, improperly installed, or subjected to abnormal riding conditions. If we receive a tire that does not qualify (not enough tread depth or out of time window) the customer must pay to get the tire back, or we will dispose of it. We aren't responsible for any tires shipped back that don't meet the money back guidelines.

By initiating a return under this Money Back Guarantee, the buyer acknowledges and agrees to abide by the outlined conditions. RISK Racing reserves the right to amend or terminate the Money Back Guarantee policy at its discretion.



Terrain Type:

Tire terrain type UI selector showing 2 different terrain styles using text Motocross and Enduro with the indicator selecting Enduro meaning this tire is good for Enduro terrain.

🏁 Plews Tyres - 

  • Pattern Name: GRAND PRIX
  • Pattern Number: EN1
  • Terrain: Enduro
  • Approval: ECE – D.O.T – ACU & FIM Compatible
  • Premium Enduro Tire: Crafted for WEC and BEC-style racing, this tire is designed to meet the demands of the most challenging Enduro events.
  • Designed in the UK

EN1 Grand Prix: Unleash Enduro Excellence

When it comes to conquering Enduro racing with confidence, the EN1 Grand Prix is your ultimate partner.

High-Performance Marvel

This tire is more than just a rubber and fabric. It's a high-performance marvel, engineered to deliver exceptional results in the toughest Enduro conditions.

Enduro racer arched over his handlebars waiting to start his race. He's wearing Risk Racing MX Gear and his bike is equipped with Plews Tyres.

Designed in the UK

Engineered with British precision, the EN1 Grand Prix is a testament to cutting-edge tire design.

Compound Mastery

The compound used in the EN1 Grand Prix is designed in the UK by world-leading chemists. It's a fusion of durability and grip, utilizing the latest technology and globally sourced materials.

Multi-Event Master

The EN1 Pattern is versatile and suitable for a range of racing events like WEC, BEC, Sprint Enduro races, Hare n Hound races, and more. Its design optimizes grip and comfort for Enduro racers.

Lateral Block Detailing

Detailed work around the lateral blocks enhances bite and grip, providing you with the confidence to tackle challenging terrains.

Tailored to Regulations

This tire complies with FIM regulations, ensuring that you're racing within the rules and giving you peace of mind on the track.

Enduro Rider's Choice

The EN1 Grand Prix is the go-to tire for all things Enduro, whether you’re a high-level racer or an enthusiast looking for a tire that matches the demands of classical Enduro riding.

Comparable Excellence

The Grand Prix range can be compared to the Michelin Medium Enduro tire range and the Intermediate/hard Metzeler tire range. It's designed to excel in challenging Enduro conditions.

Silica for Grip

High silica content in the compound enhances wet grip, improves performance in cold temperatures, and increases traction on various terrains.

Master the Art of Enduro Racing

The EN1 Grand Prix is more than a tire; it’s your key to mastering the art of Enduro racing. Whether you’re preparing for a local race or tackling an ENDURO GP round, this tire ensures you have the performance and reliability you need to succeed. Choose the EN1 Grand Prix and embrace Enduro excellence.

Enduro racer coming down a very rough hillside full of large rocks. He's wearing Risk Racing Gear and his bike is running Plews Tyres

GRAND PRIX Collection

Available in a front and rear tire.




Need more than just a single front or rear tire?


General Tire Sizing Guidelines

The table below is very general information. To find your exact tire needed just do a Google search similar to: "What size tire for a 2022 Honda CRF250R" to get the exact specs.

General bike size / style front rear
450 MOTO
450 Trail style bike
Full size Enduro / Hard Enduro
250 MOTO
125 MOTO
250 Trail style bike
125 Trail style bike
Race 50 MOTO 2.5-12 2.75-10
Entry level small 50 / PW 50 / TTr50
2.5-10 2.5-10
Pit Bike / TTr110 / KLX 110 / CRF 110 2.5-14 3.0-12
What do the numbers mean?
  • The first number is the width of the tire in mm.
  • The second number is the height of the sidewall given as a % of the width.
  • The third number is the diameter of the wheel in inches.

Example: 120/80-19 or A/B-C [ The width(A) of the tire is 120mm. The sidewall height(B) is 80% of 120 or 96mm. And it fits a 19in wheel(C) ]

Size Conversion Chart
Front Tires
Metric Inch
60/100 2.50/2.75
70/100 2.75/3.00
80/100 3.00/3.25
Rear Tires
Metric Inch
80/90 2.50/3.60
80/100 2.50/3.60
90/100 3.60/4.10
110/90 3.60/4.10
100/100 4.00/4.10
110/100 4.00/4.10

California Prop. 65 WARNING:
This product can expose you to Bisphenol A, which is known to the State of California to cause birth defects or other reproductive harm. For more information go to

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