RENTHAL Front Sprocket 12 Teeth for KTM SX 60, SX 65, HUSQVARNA TC 65 and GAS GAS MC 65 1997-2023

The RENTHAL 12 dents 440--420-12GP front sprocket is designed for KTM SX 60, SX 65, HUSQVARNA TC 65 and GAS GAS MC 65 from 1997 to 2023. The front sprocket drives the chain at the gearbox output. Small and working hard, it wears faster than the rear sprocket: it's also the simplest way to change the bike's gearing.

Specifications

• Brand: RENTHAL
• Manufacturer part number: 440--420-12GP
• EAN code: 5026190107720
• Chain pitch: 420
• Mud-relief grooves
• Material: steel
• Weight: 970 g
• Engine: 2-stroke

When to replace it?

• Teeth thinned, pointed or hooked.
• Chain that jumps or slaps under acceleration.
• Play between the sprocket and the shaft, or marked splines.

Check it every time you service the chain and replace it along with the rear sprocket and the chain. Many riders change the front sprocket with every new chain, because it wears much faster than the rear sprocket.

Fitting tips

1. Loosen the sprocket nut or bolt while holding the rear wheel with the brake, before slackening the chain.
2. Clean the countershaft and check the oil seal behind the sprocket.
3. Fit the sprocket the right way round, with a lock washer or threadlocker as on the original assembly, and tighten to the manufacturer's torque.
4. Set the chain tension and lube it with chain lube.

Why RENTHAL?

The Fatbar is made exclusively in the Renthal factory, from the brand's own 7010-T6 alloy: 28.6 mm at the clamps, 22.2 mm at the ends so you keep standard controls, and no crossbar. Its variable wall thickness saves weight and its shot-peened surface improves fatigue resistance, which counts when you're landing jump after jump.

Spare parts and items to plan

• Rear sprocket : AFAM 72101N · AFAM 72101+
• Drive chain : AFAM A420MX2-G · AFAM A420R1-G
• Chain lube : LIQUI MOLY 400 ml · SCOTTOILER

Frequently asked questions

Should the rear sprocket be changed too?
If it's worn, yes: a new front sprocket running on a tired rear sprocket and chain is worn out within a few hours.

Compatibility

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

Fits:
GAS GAS MC 65 2023
GAS GAS MC 65 2022
GAS GAS MC 65 2021
HUSQVARNA TC 65 2023
HUSQVARNA TC 65 2022
HUSQVARNA TC 65 2021
HUSQVARNA TC 65 2020
HUSQVARNA TC 65 2019
HUSQVARNA TC 65 2018
HUSQVARNA TC 65 2017
KTM SX 60 2001
KTM SX 60 2000
KTM SX 60 1999
KTM SX 60 1998
KTM SX 60 1997
KTM SX 65 2023
KTM SX 65 2022
KTM SX 65 2021
KTM SX 65 2020
KTM SX 65 2019
KTM SX 65 2018
KTM SX 65 2017
KTM SX 65 2016
KTM SX 65 2015
KTM SX 65 2014
KTM SX 65 2013
KTM SX 65 2012
KTM SX 65 2011
KTM SX 65 2010
KTM SX 65 2009
KTM SX 65 2008
KTM SX 65 2007
KTM SX 65 2006
KTM SX 65 2005
KTM SX 65 2004
KTM SX 65 2003
KTM SX 65 2002
KTM SX 65 2001
KTM SX 65 2000
KTM SX 65 1999
KTM SX 65 1998