click to zoom in

RFX Pro Series Armalite Rear Sprocket Gas Gas MC/F 21-24 EC/ECF 21-24 (Red)

(No reviews yet) Write a Review
RRP £52.99
(Inc. VAT)
RRP £44.16
(Ex. VAT)
0.75 KGS
Calculated at Checkout
Bike Make:
Gas Gas
Armalite Dual Aluminium/Steel
Product Type:
Sprocket - Rear
TRADE ONLY. Please login

RFX Pro Series Armalite Rear Sprocket Gas Gas MC/F 21-24 EC/ECF 21-24 (Red) Various Sizes

RFX Pro Series Armalite sprockets are designed and tested at the highest level by top World and British championship race teams.

The dual ring design gives the ultimate sprocket performance, reduced weight thanks to a 7075-T6 aluminium centre and long lasting teeth life thanks to the high carbon steel outer.

Armalite sprockets also feature a hexagon drive interface between the inner and outer ring, this is revolutionary technology for sprockets and maximises drive between the two parts and reduces the force on the rivets to zero unlike the competition.  

Pro Series Armalite Sprocket Features:

  • CNC 7075 Aerospace aluminium Inner ring
  • HCS Outer Ring
  • Hex-Drive location between inner & outer ring
  • CAD designed profile for lightness.
  • New style mud clearing grooves to reduce wear.
  • Rigid design increases torsional strength.
  • Colour anodised for that factory bike look.

Fitting Instructions: 

  • Start with bike on a stand with the rear wheel raised from the ground.
  • Remove chain and wheel from bike.
  • While holding the Hex key loosen the nuts with a spanner.
  • Remove all nuts and old sprocket.
  • Clean around the hub making sure clean and free of debris.
  • Take the new sprocket and place on hub ensuring a nice snug fit making sure the bolt holes are in position.
  • Clean sprocket bolts & nuts.
  • Apply Blue Loctite to each bolt and insert in the holes.
  • Thread nuts on to bolts by hand ensuring locking seals are intact and in good condition.
  • Hold Hex key in place and tighten nuts even pattern.
  • Torque nuts and bolts in accordance to your owner’s manual.
  • Put wheel back in bike making sure chain is corrected aligned and tightened to manufacturer’s specification.


to top

Trade Account Application

If you are interested in becoming a new wholesale customer of Race FX, please complete the 'Create an Account' form below. Someone will be in touch with you as soon as possible to verify and activate your account.

Create An Account