RACETECH Worx 2.0 Chain Guide for YAMAHA WRF, YZ, YZF 125, 250, 450 and FANTIC XE, XEF, XX, XXF 125, 250, 300, 450 2007-2026

The RACETECH Worx 2.0 chain guide is designed for FANTIC XE 125, XE 300, XEF 250, XEF 450, XX 125, XX 250, XXF 250, XXF 450 and YAMAHA WRF 250, WRF 450, YZ 125, YZ 250, YZF 250, YZF 450 from 2007 to 2026. Sitting just in front of the rear sprocket, the chain guide channels the lower run of the chain. Off-road, it's a safety part: it keeps the chain from derailing and protects the sprocket from impacts.

Specifications

• Brand: RACETECH
• Manufacturer part numbers: R-CRUYZFNR0020, R-CRUYZFBLNR20, R-CRUYZFBNNR20
• One-piece, replaceable internal wear pad
• Available versions: Black: ref. R-CRUYZFNR0020; Blue/black: ref. R-CRUYZFBLNR20; White/black: ref. R-CRUYZFBNNR20

Choosing the colour

All versions fit the same way: the colour is purely a styling choice, to match the bike or to stand out from it.

When to replace it?

• Wear pad grooved by the chain, almost worn through or cracked.
• Guide bent or broken after an impact.
• Chain rubbing on the side plates instead of running through the centre.

Check it every time you wash the bike: a pad worn down to the metal wears the chain, and a bent guide can throw the chain off.

Fitting tips

1. Remove the old guide and clean the mounting points on the swingarm.
2. Offer up the new guide and check that the chain runs through the centre without touching the side plates.
3. Tighten the bolts to the manufacturer's torque, with medium-strength threadlocker.
4. Spin the wheel to check the alignment, then set the chain tension.

Why RACETECH?

Racetech, now also sold under the Rtech name, is an Italian brand launched in 2002 by Cristian Mittone, a former professional enduro rider, and based in Premariacco, near Udine. Its catalogue runs to more than 5,000 parts in plastic, aluminium and rubber, from plastic kits to handguards and chain guides.

Spare parts and items to plan

• Drive chain : RENTHAL · RENTHAL 520
• Rear sprocket : RENTHAL · INNTECK

Frequently asked questions

Can the wear pad be replaced?
On two-piece guides, yes: you just change the pad when it's worn.

Compatibility

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

Fits:
FANTIC XE 125 2026
FANTIC XE 125 2025
FANTIC XE 125 2024
FANTIC XE 125 2023
FANTIC XE 125 2022
FANTIC XE 125 2021
FANTIC XE 300 2026
FANTIC XE 300 2025
FANTIC XE 300 2024
FANTIC XE 300 2023
FANTIC XE 300 2022
FANTIC XE 300 2021
FANTIC XEF 250 2023
FANTIC XEF 250 2022
FANTIC XEF 250 2021
FANTIC XEF 450 2023
FANTIC XEF 450 2022
FANTIC XEF 450 2021
FANTIC XX 125 2026
FANTIC XX 125 2025
FANTIC XX 125 2024
FANTIC XX 125 2023
FANTIC XX 125 2022
FANTIC XX 125 2021
FANTIC XX 250 2026
FANTIC XX 250 2025
FANTIC XX 250 2024
FANTIC XX 250 2023
FANTIC XX 250 2022
FANTIC XX 250 2021
FANTIC XXF 250 2023
FANTIC XXF 250 2022
FANTIC XXF 250 2021
FANTIC XXF 450 2022
FANTIC XXF 450 2021
YAMAHA WRF 250 2023
YAMAHA WRF 250 2022
YAMAHA WRF 250 2021
YAMAHA WRF 250 2020
YAMAHA WRF 250 2019
YAMAHA WRF 250 2018
YAMAHA WRF 250 2017
YAMAHA WRF 250 2016
YAMAHA WRF 250 2015
YAMAHA WRF 250 2014
YAMAHA WRF 250 2013
YAMAHA WRF 250 2012
YAMAHA WRF 250 2011
YAMAHA WRF 250 2010
YAMAHA WRF 250 2009
YAMAHA WRF 250 2008
YAMAHA WRF 250 2007
YAMAHA WRF 450 2023
YAMAHA WRF 450 2022
YAMAHA WRF 450 2021
YAMAHA WRF 450 2020
YAMAHA WRF 450 2019
YAMAHA WRF 450 2018
YAMAHA WRF 450 2017
YAMAHA WRF 450 2016
YAMAHA WRF 450 2015
YAMAHA WRF 450 2014
YAMAHA WRF 450 2013
YAMAHA WRF 450 2012
YAMAHA WRF 450 2011
YAMAHA WRF 450 2010
YAMAHA WRF 450 2009
YAMAHA WRF 450 2008
YAMAHA WRF 450 2007
YAMAHA YZ 125 2026
YAMAHA YZ 125 2025
YAMAHA YZ 125 2024
YAMAHA YZ 125 2023
YAMAHA YZ 125 2022
YAMAHA YZ 125 2021
YAMAHA YZ 125 2020
YAMAHA YZ 125 2019
YAMAHA YZ 125 2018
YAMAHA YZ 125 2017
YAMAHA YZ 125 2016
YAMAHA YZ 125 2015
YAMAHA YZ 125 2014
YAMAHA YZ 125 2013
YAMAHA YZ 125 2012
YAMAHA YZ 125 2011
YAMAHA YZ 125 2010
YAMAHA YZ 125 2009
YAMAHA YZ 250 2026
YAMAHA YZ 250 2025
YAMAHA YZ 250 2024
YAMAHA YZ 250 2023
YAMAHA YZ 250 2022
YAMAHA YZ 250 2021
YAMAHA YZ 250 2020
YAMAHA YZ 250 2019
YAMAHA YZ 250 2018
YAMAHA YZ 250 2017
YAMAHA YZ 250 2016
YAMAHA YZ 250 2015
YAMAHA YZ 250 2014
YAMAHA YZ 250 2013
YAMAHA YZ 250 2012
YAMAHA YZ 250 2011
YAMAHA YZ 250 2010
YAMAHA YZ 250 2009
YAMAHA YZF 250 2023
YAMAHA YZF 250 2022
YAMAHA YZF 250 2021
YAMAHA YZF 250 2020
YAMAHA YZF 250 2019
YAMAHA YZF 250 2018
YAMAHA YZF 250 2017
YAMAHA YZF 250 2016
YAMAHA YZF 250 2015
YAMAHA YZF 250 2014
YAMAHA YZF 250 2013
YAMAHA YZF 250 2012
YAMAHA YZF 250 2011
YAMAHA YZF 250 2010
YAMAHA YZF 250 2009
YAMAHA YZF 250 2008
YAMAHA YZF 250 2007
YAMAHA YZF 450 2022
YAMAHA YZF 450 2021
YAMAHA YZF 450 2020
YAMAHA YZF 450 2019
YAMAHA YZF 450 2018
YAMAHA YZF 450 2017
YAMAHA YZF 450 2016
YAMAHA YZF 450 2015
YAMAHA YZF 450 2014
YAMAHA YZF 450 2013
YAMAHA YZF 450 2012
YAMAHA YZF 450 2011
YAMAHA YZF 450 2010
YAMAHA YZF 450 2009
YAMAHA YZF 450 2008
YAMAHA YZF 450 2007