Two-Wheel Tuesday Spotlight: #51 Robem Engineering Aprilia RS 660 Twins Cup

A championship bike in its first year, the Aprilia RS 660 strikes a pose at Barber Motorsports Park during the final round of the 2021 MotoAmerica season. Photo by Brian J. Nelson.

When the brand-new Aprilia RS 660 broke cover last winter, Robem Engineering was all-in on racing it in MotoAmerica’s Twins Cup Championship. The team purchased a fleet of bikes, signed a bunch of riders, and worked with MotoAmerica’s Technical Director Tige Daane to help get the bike homologated for Twins Cup. The hard work paid off for Robem, whose rider Kaleb De Keyrel won the class championship in the Aprilia RS 660’s very first year. De Keyrel notched five wins and 10 podium finishes out of 14 races on the season.

Rider: Kaleb De Keyrel

Engine: 659cc, 4 Stroke, Parallel Twin Cylinder, Liquid Cooled with Water-Oil Radiator and Heat Exchanger, DOHC, 8 valves

Electronics: Aprilia Race ECU

Spark Plugs: NGK

Transmission: Six-Speed Constant Mesh

Clutch: Suter

Exhaust: SC-Project Full Titanium 2-1 System

Air Filter: DNA

Fuel: VP Racing

Lubrication: Blud Racing

Sprockets: Vortex

Final Drive: D.I.D Chain

Front Suspension: Bitubo EBH Forks with Velocity Calibrations Tuning

Rear Suspension: Bitubo XXZ Shock with Velocity Calibrations Tuning

Front Brakes: Brembo calipers/Vesrah brake pads

Rear Brakes: Brembo caliper/Vesrah brake pads

Brake Lines: Spiegler

Front Brake Master Cylinder: Magura

Brake Lever: Magura

Brake Lever Guard: Robem Engineering

Handlebars: Robem Engineering

Handlebar Grips: Vortex

Rearsets: Woodcraft

Subframe: Robem Engineering

Wheels: DYMAG

Tires: Dunlop

Bodywork: Cruciata

Engine Covers & Tank Protectors: Robem Engineering

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