RFX steel front sprocket 11T, 520 pitch for BETA EVO 125, EVO 250, REV3 250, REV3 270 and HUSQVARNA TC 449, TE 449, TE 449 I.E

RFX offers this front sprocket for BETA EVO 125, EVO 250, REV3 250, REV3 270, TECHNO 250 and HUSQVARNA TC 449, TE 449, TE 449 I.E 1999-2015. The front sprocket sits on the gearbox output shaft and passes the engine’s power to the chain, which turns the rear sprocket and the rear wheel.

Why replace the front sprocket?

The benefits:

• An inexpensive part that protects a new chain and rear sprocket.
• Made of steel to withstand much heavier wear than the rear sprocket.
• Changing the number of teeth is the simplest, cheapest way to alter the gearing.

When should you replace the front sprocket?

Dished or hooked teeth: replace it straight away, otherwise it will ruin a new chain within hours.

Specifications and fitting tips

• Chain pitch: 520
• Material: Steel
• Front sprocket teeth count: 11
• Front sprocket version: Standard
• CNC Machined to extremely tight tolerances.
• Case Hardened and core refined Alloy steel that gives you the best strength and durability.
• Manufacturer part number: FXFS 90-11 55ST

Cross-Mania tip: Replace the front sprocket together with the chain and rear sprocket, renew the sprocket nut or circlip and check the output shaft seal.

Also needed with this part

• Rear sprocket : AFAM · RFX
• Drive chain : AFAM A520XRR3-G · AFAM A520MR2-G 1
• Chain lube : LIQUI MOLY 400 ml · MUC OFF

Compatibility

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

Fits:
BETA EVO 125 2015
BETA EVO 125 2014
BETA EVO 125 2013
BETA EVO 125 2012
BETA EVO 125 2011
BETA EVO 125 2010
BETA EVO 125 2009
BETA EVO 250 2012
BETA EVO 250 2011
BETA EVO 250 2010
BETA EVO 250 2009
BETA REV3 250 2008
BETA REV3 250 2007
BETA REV3 250 2006
BETA REV3 250 2005
BETA REV3 250 2004
BETA REV3 250 2003
BETA REV3 250 2002
BETA REV3 250 2001
BETA REV3 250 2000
BETA REV3 270 2008
BETA REV3 270 2007
BETA REV3 270 2006
BETA REV3 270 2005
BETA REV3 270 2004
BETA REV3 270 2003
BETA REV3 270 2002
BETA REV3 270 2001
BETA TECHNO 250 1999
HUSQVARNA TC 449 2013
HUSQVARNA TC 449 2012
HUSQVARNA TC 449 2011
HUSQVARNA TE 449 2013
HUSQVARNA TE 449 I.E 2012
HUSQVARNA TE 449 I.E 2011