LighTech Chain Tensioner Yamaha YZF-R1/M RN32 RN49 2015-2019 TEYA003

Machined from solid Ergal 7075 aluminium and finished to exacting tolerances, the LighTech TEYA003 chain tensioner sets a new benchmark for precision and durability on the Yamaha YZF-R1 and YZF-R1M (RN32/RN49, 2015–2019). Where the factory unit leaves room for improvement, this CNC-milled replacement delivers repeatable, symmetrical chain adjustment that serious track and road riders can rely on.

Key Features

• CNC-milled from solid Ergal 7075 high-tensile aluminium — significantly lighter and stronger than the OEM component
• External adjuster screw allows fine chain tension correction in seconds, without removing wheels or disturbing other components
• Laser-engraved graduation scale ensures perfect symmetry between both sides — no tape measure, no guesswork
• Substantially more precise chain tension adjustment than the standard Yamaha part, reducing wear and improving handling consistency
• Direct fitment for Yamaha YZF-R1 and YZF-R1M RN32 and RN49 chassis (model years 2015 to 2019)
• Compatible with optional fork kit FTEYA003 for enhanced performance and installation convenience

Built for Performance Without Compromise

Ergal 7075 is the same high-grade aluminium alloy used throughout motorsport for structural components where mass reduction and mechanical strength must coexist. LighTech CNC-mills every tensioner from a solid billet, meaning there are no cast porosity issues, no weak points, and no dimensional tolerances carried over from a production die. The result is a component that looks and feels like a factory racing part — because, in every meaningful sense, it is one.

Precision Adjustment, Every Time

The external adjuster screw is the practical centrepiece of this design. On a standard tensioner, chain adjustment is a two-handed job that often requires a second person and repeated checks. Here, a single turn of the external screw moves the axle block a defined, repeatable amount. Combined with the laser-engraved scale, you can confirm identical readings on both sides at a glance — critical after a tyre change on a trackday or during a race weekend where time in the paddock costs lap times.

Optional Upgrade

For riders who want the complete LighTech drivetrain solution, the fork kit FTEYA003 pairs directly with the TEYA003 tensioner, delivering additional performance gains and a cleaner installation.

Fitment and Compatibility

This chain tensioner fits the following models:

• Yamaha YZF-R1 RN32 — 2015, 2016, 2017, 2018, 2019
• Yamaha YZF-R1M RN49 — 2015, 2016, 2017, 2018, 2019

Specifications