AFAM aluminium rear sprocket 40T, 415 pitch for KTM SX 50, SX 50 MINI, HUSQVARNA TC 50, TC 50 MINI and GAS GAS MC 50 2014-2027

AFAM offers this rear sprocket for KTM SX 50, SX 50 MINI, HUSQVARNA TC 50, TC 50 MINI and GAS GAS MC 50 2014-2027. The rear sprocket receives the engine’s power through the chain and turns the rear wheel. Its number of teeth sets the gearing: with more teeth the bike accelerates harder but has a lower top speed; with fewer teeth it is the other way round.

Why fit a new rear sprocket?

The benefits:

• New teeth that hold the chain properly and make it last.
• The number of teeth is chosen to suit the terrain: more teeth for slow, tight sections, fewer for fast tracks.
• Aluminium or steel: aluminium is lighter, steel lasts much longer; “mud-release” models have cut-outs that clear the dirt.

When should you replace the rear sprocket?

Pointed, hooked or uneven teeth, or a chain that lifts easily off the back of the sprocket: the chain kit needs replacing.

Specifications and fitting tips

• Chain pitch: 415
• Material: Aluminium
• Rear sprocket teeth count: 40
• Rear sprocket version: Standard
• Type: Rear sprocket
• Racing type aluminium rear-sprocket
• Manufacturer part number: 72106-40

Cross-Mania tip: Replace the rear sprocket, front sprocket and chain together, tighten the sprocket bolts in a cross pattern with threadlocker and set the chain slack to the manual.

Also needed with this part

• Front sprocket : AFAM · RENTHAL front sprocket 10 teeth, 415 p…
• Drive chain : AFAM A415F · AFAM
• Chain lube : LIQUI MOLY 400 ml · LIQUI MOLY 250 ml

Compatibility

Check the exact model and year of your bike in the list below before ordering.

Fits:
GAS GAS MC 50 2027
GAS GAS MC 50 2026
GAS GAS MC 50 2025
GAS GAS MC 50 2024
GAS GAS MC 50 2023
GAS GAS MC 50 2022
GAS GAS MC 50 2021
HUSQVARNA TC 50 2027
HUSQVARNA TC 50 2026
HUSQVARNA TC 50 2025
HUSQVARNA TC 50 2024
HUSQVARNA TC 50 2023
HUSQVARNA TC 50 2022
HUSQVARNA TC 50 2021
HUSQVARNA TC 50 2020
HUSQVARNA TC 50 2019
HUSQVARNA TC 50 2018
HUSQVARNA TC 50 2017
HUSQVARNA TC 50 MINI 2024
HUSQVARNA TC 50 MINI 2023
HUSQVARNA TC 50 MINI 2022
HUSQVARNA TC 50 MINI 2021
HUSQVARNA TC 50 MINI 2020
HUSQVARNA TC 50 MINI 2019
HUSQVARNA TC 50 MINI 2018
KTM SX 50 2027
KTM SX 50 2026
KTM SX 50 2025
KTM SX 50 2024
KTM SX 50 2023
KTM SX 50 2022
KTM SX 50 2021
KTM SX 50 2020
KTM SX 50 2019
KTM SX 50 2018
KTM SX 50 2017
KTM SX 50 2016
KTM SX 50 2015
KTM SX 50 2014
KTM SX 50 MINI 2024
KTM SX 50 MINI 2023
KTM SX 50 MINI 2022
KTM SX 50 MINI 2021
KTM SX 50 MINI 2020
KTM SX 50 MINI 2019
KTM SX 50 MINI 2018
KTM SX 50 MINI 2017
KTM SX 50 MINI 2016
KTM SX 50 MINI 2015
KTM SX 50 MINI 2014