Description
For riders who demand both thermal performance and vintage racing aesthetics, this Motone Ribbed Clutch Cover transforms your Triumph’s left-side engine case into a functional work of art. Inspired by classic aftermarket parts from British racing heritage, the vertical ribbed design doesn’t just evoke nostalgia—it actively increases surface area by approximately 35% compared to stock covers, improving heat dissipation during clutch engagement cycles and extended low-speed riding conditions.
Key Features
High-Pressure Die-Cast Aircraft Aluminum Construction
Manufactured from aircraft-grade aluminum alloy using high-pressure die-casting techniques that ensure uniform wall thickness and eliminate porosity issues common in gravity-cast alternatives. This process creates a cover that’s both lightweight (reducing rotational mass on the left side of the engine) and structurally rigid, resisting deformation under thermal cycling between ambient temperature and 100°C+ clutch operating temperatures.
Vertical Ribbed Heat Dissipation Design
Eighteen precision-formed vertical ribs create additional cooling surface area, promoting convective heat transfer during both stationary idle and highway cruising. This enhanced thermal management extends clutch plate life by reducing oil temperature in the primary chaincase—particularly beneficial for riders in tropical climates or those frequently navigating stop-and-go traffic. The rib geometry follows vintage Triumph aftermarket designs from the 1960s-70s racing era.
Black Wrinkle Powder Coat Finish
Finished in durable wrinkle-texture black powder coating that matches OEM engine case paint specifications. The wrinkle finish provides superior scratch resistance compared to smooth powder coat, hiding minor scuffs from boot contact and maintaining appearance through years of daily use. The coating withstands direct exposure to petroleum-based solvents and synthetic engine oils without discoloration.
Complete Gasket and Hardware Package
Ships with a fresh OEM-specification cork-rubber composite gasket engineered for modern synthetic oils, plus a wire retaining clip for securing internal primary chaincase wiring. The gasket features precision die-cut mounting holes that align perfectly with OEM bolt patterns, eliminating fitment issues and ensuring oil-tight sealing through hundreds of thermal expansion cycles.
Direct-Mount Installation Without Modifications
Designed as a direct bolt-on replacement for stock Triumph clutch covers with zero modifications required. All mounting bosses and inspection window positions match OEM specifications precisely. Installation requires only basic hand tools and can be completed in under 30 minutes without draining primary chaincase oil if the motorcycle is leaned completely onto its side stand.
| Specification | Detail |
|---|---|
| Product Code | MMU062 |
| Material | High-Pressure Die-Cast Aircraft-Grade Aluminum Alloy |
| Finish | Black Wrinkle Powder Coat (Engine Match) |
| Rib Design | 18 Vertical Cooling Fins (35% increased surface area) |
| Compatible Models | 2016+ Triumph Liquid-Cooled 900cc & 1200cc Twins (Street Twin, Street Scrambler, Bonneville T100, T120, Bobber, Speed Twin) |
| Included Hardware | OEM-Spec Cork-Rubber Gasket, Internal Wire Retaining Clip |
| Installation Time | 25-30 minutes (no oil drain if bike leaned) |
| Weight | Approx. 620g (12% lighter than stock cover) |
| Heat Dissipation | Up to 8°C lower primary case oil temps vs. stock (tested at 35°C ambient) |
| Design Heritage | Inspired by 1960s-70s Vintage Triumph Racing Covers |
Installation Note: Ensure your model year is compatible—all 2016-onward liquid-cooled 900cc and 1200cc Triumph twins use the same clutch cover bolt pattern. For oil-free installation, lean motorcycle completely onto side stand (left side down), wait 3-4 minutes for residual oil to drain away from cover area, then proceed with removal. Torque mounting bolts to 10 Nm (89 in-lbs) in a star pattern to ensure even gasket compression.
