• -25.34%
RFX Pro Series Armalite Double Compound Rear Sprocket (Steel/Aluminium) - 520 - 50 Teeth
RFX Pro Series Armalite Double Compound Rear Sprocket (Steel/Aluminium) - 520 - 50 Teeth

RFX Pro Series Armalite Double Compound Rear Sprocket (Steel/Aluminium) - 520 - 50 Teeth

RFX
FXRS 50-50 ALRD
Shipped the 01/09/2026
€50.02 €67.00 -25.34%
Tax included

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.
Stock availibility Yes
Color Red

 
Compatibilités véhicule
Modèles compatibles vérifiés
194
KOVE, TRIUMPH, GASGAS, KTM, BETA 2015-2026
Voir tous les modèles compatibles
2026 KOVE 450 RALLY 2026 - RED 450cc KOVE 450 RALLY LOW 2026 - RED 450cc TRIUMPH TF 250-E 250cc TRIUMPH TF 250-X 250cc TRIUMPH TF 450-E 450cc TRIUMPH TF 450-RC 450cc TRIUMPH TF 450-X 450cc
2025 GASGAS EC 125 125cc GASGAS EC 250 250cc GASGAS EC 250F 250cc GASGAS EC 300 300cc GASGAS EC 350F 350cc GASGAS EC 450F 450cc GASGAS EC 500F 500cc GASGAS MC 125 125cc GASGAS MC 150 150cc GASGAS MC 250 250cc GASGAS MC 250F 250cc GASGAS MC 300 300cc GASGAS MC 350F 350cc GASGAS MC 450F 450cc GASGAS MC 450F PRADO EDITION 450cc KOVE 450 RALLY - RED 450cc KOVE 450 RALLY LOW - RED 450cc KTM 150 EXC 2025 <2025><EU><F7103Y6> 150cc KTM 150 SX 2025 <2025><EU><F6301Y1> 150cc KTM 250 EXC-F 2025 <2025><EU><F8103Y9> 250cc KTM 350 EXC-F 2025 <2025><EU><F8203Y9> 350cc KTM 450 EXC-F 2025 <2025><EU><F8403Y9> 450cc KTM 500 EXC-F 2025 <2025><EU><F8503Y9> 500cc TRIUMPH TF 250-E 250cc TRIUMPH TF 250-X 250cc TRIUMPH TF 450-E 450cc TRIUMPH TF 450-RC 450cc
2024 GASGAS EC 250 250cc GASGAS EC 250F 250cc GASGAS EC 250F IKD 250cc GASGAS EC 350F 350cc GASGAS EC 450F 450cc GASGAS EC 500F 500cc GASGAS MC 125 125cc GASGAS MC 250 250cc GASGAS MC 250F 250cc GASGAS MC 250F Factory Edition 250cc GASGAS MC 250F IKD 250cc GASGAS MC 350F 350cc GASGAS MC 450F 450cc GASGAS MC 450F FACTORY EDITION 450cc KTM 150 EXC 2024 <2024><EU><F7103X6> 150cc KTM 250 EXC-F 2024 <2024><EU><F8103X9> 250cc KTM 350 EXC-F 2024 <2024><EU><F8203X9> 350cc KTM 450 EXC-F 2024 <2024><EU><F8403X9> 450cc KTM 500 EXC-F 2024 <2024><EU><F8503X9> 500cc TRIUMPH TF 250-X 250cc
2023 GASGAS EC 250F 250cc GASGAS EC 250F IKD 250cc GASGAS EC 350F 350cc GASGAS MC 125 125cc GASGAS MC 250 250cc GASGAS MC 250 BT 250cc GASGAS MC 250F 250cc GASGAS MC 250F BT 250cc GASGAS MC 250F Factory Edition 250cc GASGAS MC 250F IKD 250cc GASGAS MC 350F 350cc GASGAS MC 450F 450cc GASGAS MC 450F FACTORY EDITION 450cc KTM 150 EXC 2023 <2023><EU><F7103W6> 150cc KTM 250 EXC 2023 <2023><EU><F7303W7> 250cc KTM 250 EXC-F 2023 <2023><EU><F8103W9> 250cc KTM 300 EXC 2023 <2023><EU><F7403W7> 300cc KTM 350 EXC-F 2023 <2023><EU><F8203W9> 350cc KTM 450 EXC-F 2023 <2023><EU><F8403W9> 450cc KTM 500 EXC-F 2023 <2023><EU><F8503W9> 500cc
2022 BETA ENDURO XTRAINER 250 2T 250cc BETA ENDURO XTRAINER 300 2T 300cc GASGAS EC 250 250cc GASGAS EC 250F 250cc GASGAS EC 350F 350cc GASGAS MC 125 125cc GASGAS MC 250 250cc GASGAS MC 350F 350cc GASGAS MC 450F TROY LEE DESIGNS 450cc GASGAS TXT GP 125 125cc GASGAS TXT RACING 125 125cc KTM 125 SX 2022 <2022><EU><F6101V0> 125cc KTM 150 EXC TPI 2022 <2022><EU><F7103V6> 150cc KTM 150 SX 2022 <2022><EU><F6101V1> 150cc KTM 250 EXC TPI 2022 <2022><EU><F7303V7> 250cc KTM 250 EXC-F 2022 <2022><EU><F8103V9> 250cc KTM 250 SX 2022 <2022><EU><F6301V0> 250cc KTM 250 SX-F 2022 <2022><F8101V5> 250cc KTM 300 EXC TPI 2022 <2022><EU><F7403V7> 300cc KTM 350 EXC-F 2022 <2022><EU><F8203V9> 350cc KTM 350 SX-F 2022 <2022><EU><F8201V5> 350cc KTM 450 EXC-F 2022 <2022><EU><F8403V9> 450cc KTM 450 SX-F 2022 <2022><EU><F8401V5> 450cc KTM 500 EXC-F 2022 <2022><EU><F8503V9> 500cc
2021 BETA ENDURO XTRAINER 250 2T 250cc BETA ENDURO XTRAINER 300 2T 300cc GASGAS EC 250F 250cc GASGAS EC 350F 350cc GASGAS MC 250F 250cc GASGAS MC 450F 450cc KTM 125 SX 2021 <2021><EU><F6101U0> 125cc KTM 150 EXC TPI 2021 <2021><EU><F7103U6> 150cc KTM 150 SX 2021 <2021><EU><F6101U1> 150cc KTM 250 EXC TPI 2021 <2021><EU><F7303U7> 250cc KTM 250 EXC-F 2021 <2021><EU><F8103U9> 250cc KTM 250 SX 2021 <2021><EU><F6301U0> 250cc KTM 250 SX-F 2021 <2021><EU><F8101U5> 250cc KTM 250 SX-F TROY LEE DESIGNS 2021 <2021><EU><F8103U6> 250cc KTM 300 EXC TPI 2021 <2021><EU><F7403U7> 300cc KTM 350 EXC-F 2021 <2021><EU><F8203U9> 350cc KTM 350 SX-F 2021 <2021><EU><F8201U5> 350cc KTM 450 EXC-F 2021 <2021><EU><F8403U9> 450cc KTM 450 SX-F 2021 <2021><EU><F8401U5> 450cc KTM 500 EXC-F 2021 <2021><EU><F8503U9> 500cc
2020 BETA ENDURO XTRAINER 250 2T 250cc BETA ENDURO XTRAINER 300 2T 300cc KTM 125 SX 2020 <2020><EU><F6101T0> 125cc KTM 150 EXC TPI 2020 <2020><EU><F7103T6> 150cc KTM 150 SX 2020 <2020><EU><F6101T1> 150cc KTM 250 EXC TPI 2020 <2020><EU><F7303T7> 250cc KTM 250 EXC-F 2020 <2020><EU><F8103T9> 250cc KTM 250 SX 2020 <2020><EU><F6301T0> 250cc KTM 250 SX-F 2020 <2020><EU><F8101T5> 250cc KTM 300 EXC TPI 2020 <2020><EU><F7403T7> 300cc KTM 350 EXC-F 2020 <2020><EU><F8203T9> 350cc KTM 350 SX-F 2020 <2020><EU><F8201T5> 350cc KTM 450 EXC-F 2020 <2020><EU><F8403T9> 450cc KTM 450 SX-F 2020 <2020><EU><F8401T5> 450cc KTM 500 EXC-F 2020 <2020><EU><F8503T9> 500cc
2019 BETA ENDURO XTRAINER 250 2T 250cc BETA ENDURO XTRAINER 300 2T 300cc KTM 125 SX 2019 <2019><EU><F6101S0> 125cc KTM 125 XC-W 2019 <2019><EU><F7103S3> 125cc KTM 150 SX 2019 <2019><EU><F6101S1> 150cc KTM 250 EXC TPI 2019 <2019><EU><F7303S7> 250cc KTM 250 EXC-F 2019 <2019><EU><F8103S9> 250cc KTM 250 SX 2019 <2019><EU><F6301S0> 250cc KTM 250 SX-F 2019 <2019><EU><F8101S5> 250cc KTM 300 EXC TPI 2019 <2019><EU><F7403S7> 300cc KTM 350 EXC-F 2019 <2019><EU><F8203S9> 350cc KTM 350 SX-F 2019 <2019><EU><F8201S5> 350cc KTM 450 EXC-F 2019 <2019><EU><F8403S9> 450cc KTM 450 SX-F 2019 <2019><EU><F8401S5> 450cc KTM 500 EXC-F 2019 <2019><EU><F8503S9> 500cc
2018 BETA ENDURO XTRAINER 250 250cc KTM 125 SX 2018 <2018><EU><F6101R0> 125cc KTM 125 XC-W 2018 <2018><EU><F7103R3> 125cc KTM 150 SX 2018 <2018><EU><F6101R1> 150cc KTM 250 EXC TPI 2018 <2018><EU><F7303R7> 250cc KTM 250 EXC-F 2018 <2018><EU><F8103R9> 250cc KTM 250 SX 2018 <2018><EU><F6301R0> 250cc KTM 250 SX-F 2018 <2018><EU><F8101R5> 250cc KTM 300 EXC TPI 2018 <2018><EU><F7403R7> 300cc KTM 350 EXC-F 2018 <2018><EU><F8203R9> 350cc KTM 350 SX-F 2018 <2018><EU><F8201R5> 350cc KTM 450 EXC-F 2018 <2018><EU><F8403R9> 450cc KTM 450 SX-F 2018 <2018><EU><F8401R5> 450cc KTM 500 EXC-F 2018 <2018><EU><F8503R9> 500cc
2017 KTM 125 SX 2017 <2017><EU><F6101Q0> 125cc KTM 125 XC-W 2017 <2017><EU><F7103Q3> 125cc KTM 150 SX 2017 <2017><EU><F6101Q1> 150cc KTM 250 EXC 2017 <2017><EU><F7303Q6> 250cc KTM 250 EXC-F 2017 <2017><EU><F8103Q9> 250cc KTM 250 SX 2017 <2017><EU><F6301Q0> 250cc KTM 300 EXC 2017 <2017><EU><F7403Q6> 300cc KTM 350 EXC-F 2017 <2017><EU><F8203Q9> 350cc KTM 350 SX-F 2017 <2017><EU><F8201Q5> 350cc KTM 450 EXC-F 2017 <2017><EU><F8403Q9> 450cc KTM 450 SX-F 2017 <2017><EU><F8401Q5> 450cc KTM 500 EXC-F 2017 <2017><EU><F8503Q9> 500cc
2016 KTM 125 SX 2016 <2016><EU><F6101P0> 125cc KTM 150 SX 2016 <2016><EU><F6101P1> 150cc KTM 250 SX 2016 <2016><EU><F6301P0> 250cc KTM 250 SX-F 2016 <2016><EU><F8101P5> 250cc KTM 350 SX-F 2016 <2016><EU><F8201P5> 350cc KTM 450 SX-F 2016 <2016><EU><F8401P5> 450cc
2015 BETA ENDURO XTRAINER 300 300cc KTM 125 EXC 2015 <2015><EU><F7103O6> 125cc KTM 125 SX 2015 <2015><EU><F6101O0> 125cc KTM 150 SX 2015 <2015><EU><F6101O1> 150cc KTM 250 EXC 2015 <2015><EU><F7303O6> 250cc KTM 250 EXC-F 2015 <2015><EU><F8103O9> 250cc KTM 250 SX 2015 <2015><EU><F6301O0> 250cc KTM 250 SX-F 2015 <2015><EU><F8101O5> 250cc KTM 300 EXC 2015 <2015><EU><F7403O6> 300cc KTM 350 EXC-F 2015 <2015><EU><F8203O9> 350cc KTM 350 SX-F 2015 <2015><EU><F8201O5> 350cc KTM 450 EXC 2015 <2015><EU><F8403O9> 450cc KTM 450 SX-F 2015 <2015><EU><F8401O5> 450cc KTM 500 EXC 2015 <2015><EU><F8503O9> 500cc