The first turnkey racebike since Moriwaki’s MD250H, the KTM RC390 Cup was introduced to start a RC Cup with MotoAmerica in the hopes of growing the next wave of US talent to be seen in MotoGP. Most bikes were sold to race teams, but a few examples were snagged by members of the public who wanted a dedicated track toy.
The spec bike takes the already-competent RC390 and adds a generous portion of upgrades from KTM’s PowerParts catalog, including: Akrapovic titanium exhaust with baffle, fiberglass race bodywork with solo seat tail, race windshield (taller), 17” aluminum rims shod in Dunlop Sportmax Alpha-13 SP tires, upgraded 320mm petal rotors, adjustable CNC-machined aluminum rearsets, fully adjustable WP Racing suspension front and rear, swingarm spools, brake lever guard, machined folding levers, and RC8R-style throttle assembly. It also includes a assist-and-slipper clutch, ABS module deletion, and retuned engine for less peak horsepower and more mid-range torque. The weight is also down to just 304 pounds.
This example is VIN: MD2JYJ4C1GC240023. The seller bought it three years ago from race bike builder Ron Gentile.
True mileage is unknown. The seller notes that he used it for two years, about 10 track days a year. It has “about 30= hours on the chassis and now 1 hour on a new engine.”
“This KTM RC 390 Cup is an absolute track weapon that started life as a factory Cup bike. I babied this thing — oil changes every 10 hours or less. It just received a brand new engine rebuild, is dyno-tuned and mapped, and everything is extremely well sorted. WP suspension was professionally revalved and sprung for a 200 lb rider. Watch the full build/review video here:”
Maintenance:
“Brand new engine refresh done by West Coast Cycles. Suspension re-valving and springs + setup for Chuckwalla by Bobby Loo. Oil changes done prior to the build every 10 hrs or less using Blud racing oil.”
Modifications:
Not pictured: Lightweight lithium battery, Power Commander 5 with oversized injectors + quick shifter, Gray Area KTM gearbox tooling (eliminates false neutrals), key delete, manual cam chain tensioner, slipper clutch, gear indicator, pre-drilled safety bolts throughout, triple clamp bump guard, oversize rear brake, carbon mud guard, BST carbon wheels.
Full Tyga bodywork, seat, clip-ons, triples, fairing stay, belly pan & quick-release kit. Full custom paint job and graphics.
Tyga full exhaust system
BST carbon wheels
Vortex sprocket kits (full 420 and 520 sets) + extra front sprockets
Koso Red Bull Rookies Cup dash & harness
Quickshifter, custom billet footpeg raisers
Motion Pro throttle
Braided brake lines
Oversized cooling fan + aluminum water pump impeller + high-pressure radiator cap
SSR gas cap
Engine & clutch crash protectors
Axle sliders
Rear brake reservoir delete with custom tube
Inside of the tank:
It is riding on Dunlop slick tires with date codes of 1124.
The sale includes:
“Original Cup bike parts
~90% complete spare engine (piston, clutch, cases, gears, valves, cams, etc.)
Front and rear track stands
Tire warmers
Complete Excel spreadsheet with all sprocket gearing calculations.”
Cosmetic Blemishes: please see the album in the “Photos” tab for all known cosmetic blemishes. Here is a selection:
“A few stone chips, & one fiber glass fitting that needs to be re-enforced. Everything else is impeccable.”
Currently located in La Mirada, California, this KTM is offered on a clean California title. Have any RC390 Cup stories or questions about this listing? Let us know in the “Comments” tab!
