The front end of the Ronin features a linkage fork designed to improve the handling characteristics of the stock Buell chassis. Although not obvious at first, the axle travels along the same path as that of a conventional set of telescopic forks, and by increasing trail by 13 mm over stock, the bike steers nimbly yet handles confidently. An advantage to this design over a telescopic fork is that the suspension is easily tunable through the Penske mono-shock allowing finer adjustment for rider weight and road conditions. The linkage fork also gives the Ronin an aggressive stance fitting the overall aesthetic of the bike.
The aluminum alloy fork legs are investment cast and heat-treated just a few miles from the Ronin factory. The legs are important structural members and have been optimized for strength and weight via computer stress analysis simulations.
The front fender is constructed of strong yet lightweight carbon fiber designed to protect both the oil cooler and bottom of the radiator from road damage. The Ronin linkage front end is comparable in weight to a conventional telescopic fork.
The high-performance Rotax engine generates a lot of heat, enough to boil the fuel in the frame, so cooling the Ronin properly is paramount. We put the radiator right up front, perpendicular to the airflow to maximize cooling. Through many prototypes, tests, and designs, we achieved efficient cooling with a single radiator core which helped to reduce overall weight of the front end. An integrated radiator overflow tank is hidden away inside the left fork leg. The core is protected by an injection-molded grill which can be easily removed to access the radiator and adjust the headlights. The stacked low and high beam headlights are high-output projector beams, that provide performance in a compact lightweight package.
A uniquely keyed RFID chip activates a receiver under the airbox cover allowing the Ronin computer and electrical system to be powered up. No two chips have the same code and the lack of a visible key cylinder helps deter theft or tampering.
The Ronin tachometer and speedometer are housed within a single cast aluminum steering nacelle. The instrument cluster has an analog display for the tachometer and digital display for speed, water temp, voltage and mileage, and is backlit for night viewing. The clutch side lever houses the horn button and a 4-way switch that allows selection of readouts on the digital display along with operation of the headlights and turn signals. A single start / stop button is located on the brake side lever.
The Ronin incorporates custom hydraulic radial master cylinders and fully-adjustable levers for the brake and clutch. The fluid reservoirs are integrated on top of the master cylinders to reduce footprint and provide a clean reliable design. Levers have quick-adjust knobs for reach and an adjustable leverage ratio linkage.
Mirrors and turn indicators are integrated at the end of the handlebars. The indicators are positioned to be visible from both the front and rear of the bike, while seamlessly blending into the overall design when not illuminated. Maintenance-free, high-output LEDs power the indicators.
The seat pan is injection molded polymer providing rigidity, durability and an optimized fit to the sub-frame. The seat is constructed of dual-density foam for optimal single-rider comfort and feel and is finished with a hand-stitched cover.
High output LED’s illuminate the taillights. Two brighter exterior strips indicate braking. The entire tail light unit is housed in a two-piece, injection molded, impact-resistant polycarbonate lens assembly.
The custom designed, free-flowing muffler is comprised of cast aluminum ends and a stainless steel body. The exhaust system is center-mounted on the belly of the engine to help maintain a low and balanced center of gravity. The muffler is painted with a tough ceramic coating to minimize cosmetic degradation from rock hits, chemicals and heat.
The Ronin’s injection molded air box directs air into the throttle bodies from side mounted ram air slots. The entire unit is protected by a hand-laid carbon fiber shell which also covers the two sealed fuse boxes.
The entire electrical system has been redesigned from the ground up. A custom three-section wiring harness has been created to work with relocated electronics, and small waterproof connectors have been utilized where possible to save weight and space. LED lighting has been used where possible to lessen overall electrical load.
The Ronin utilizes a new custom wound, high-efficiency stator that eliminates the overheating and burnout issues often reported on the original Buell 1125. In addition to the new stator, the rotor has also been modified to allow for effective oil cooling.
A single cast aluminum unit integrates the foot pegs, battery and an adjustable idler pulley to provide belt tension. Foot treads are replaceable rubber inserts and the entire assembly blends seamlessly with the engine to which it’s mounted. Within comfortable reach of the riders feet are custom billet aluminum brake and gear shift levers.
Each Ronin has been individually tuned to achieve an optimal balance of power, ride-ability, and engine performance. New fuel mapping was necessary because a Ronin breathes differently than a stock Buell 1125 due to the Ronin’s free-flow intake and exhaust system. Tuning also allows the Ronin to run cooler at lower RPM reducing known overheating issues with the stock bike.
Supporting the rider is a custom made tubular subframe, CNC-machined and TIG welded. A cast aluminum tail section and air intake housing connect to form a single stressed member. The tail cap houses the brake light assembly and computer master control unit. On the bottom of the tail section a quick release knob allows for removal of the seat.