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 Size Guide from LS2 Helmets

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Arrow MX Competition Evo Exhaust Systems are new for 2020.

Check out the great range of new products and promotional items we currently have on offer.


Rapid Bike


Smart - BMW

Sizing Guides

Quick Size Guides - More size guides are available on the main menu

Sizing Guides

Quick Size Guides - More size guides are available on the main menu



Fueling technology for smart riders

New Rapid Bike SMART add-on fueling kit is specifically designed to improve the performance of the newest motorcycle models equipped with highly sophisticated lambda sensors complying with the latest European homologation criteria.

This technology directly controls lambda sensor signal in order to prompt stock ECU to adopt a richer carburetion over the entire delivery power curve, while securing substantial benefits for the engine overall performance.

Rapid Bike SMART technology introduces an innovative concept of software management with user-friendly parameters specifically designed to amplify or reduce the effects of the stock lambda sensor signal modification.


Rapid Bike SMART fueling technology allows to enrich (AFR) air / fuel ratio, and to optimize injection values ​​thanks to the self-adaptive logic of stock ECU. Power delivery is considerably smoother, while improving throttle response and engine reaction. The increase in terms of power and torque are consistent with engine in stock configuration, while performance of after-market exhaust systems can reach a higher efficiency level thanks to the richer fuel mixture gained with SMART add-on module.

Available for BMW models:

KIT K27-SMR-001

  • BMW R 1250 GS Euro 4 (2019-2020)
  • BMW R 1250 GS Adventure Euro 4 (2019-2020)
  • BMW R 1250 R Euro 4 (2019-2020)
  • BMW R 1250 RS Euro 4 (2019-2020)
  • BMW R 1250 RT Euro 4 (2019-2020)

KIT K27-SMR-001A

  • BMW R 1250 GS Euro 5 (2021)
  • BMW R 1250 GS Adventure Euro 5 (2021)
  • BMW R 1250 R Euro 5 (2021)
  • BMW R 1250 RS Euro 5 (2021)
  • BMW R 1250 RT Euro 5 (2021)

KIT K27-SMR-003

  • BMW S 1000 RR Euro 4 - Euro 5 (2019 - 2021)

Stock Availability Guide

🟢 Green Light

Good stock availability, usually set to 4 or more items and held in store for quick dispatch.

🟠 Amber Light

Low stock levels, usually 1-3 Items available to order. Items held in our stock or sent direct from our supplier.

🔴 Red Light

Stock levels set to 0 - Preorder available. Out of stock with ourselves and the UK distributor but can be ordered in on their next delivery.

🔴 Red Light

Stock level set to 0 with no preorder available means the product is currently not available to us from our suppliers.