— Polaris single-seater gets the “go-fast” treatment —
With a single-seat cockpit, great power-to-weight ratio and rear-mounted radiator right from the factory, Polaris’ RS1 practically begs to be raced. Fuel Off-Road’s Ryan O’Hara was happy to oblige and built an RS1 that makes the most of its high-performance platform.
WHERE THE RUBBER MEETS THE OFF-ROAD
The Fuel RS1 is built for performance from the ground up, so it rolls on Fuel’s new 32×10 Gripper T/R/K 10-ply, steel-belted all-terrain tires, a favorite of numerous Best in the Desert and Baja race teams. The tires feature light, strong, temperature-resistant Aramid fiber sidewall reinforcement.
These tires are also DOT-approved for road use. The Gripper T/R/Ks are mounted to 15×7 Fuel D938 Maverick beadlock wheels with a 5/2 offset. All Fuel beadlock wheels come standard with a 5/8-inch-thick forged aluminum beadlock ring, along with 5/16 grade-8 beadlock ring bolts. The 5/8 forged beadlock ring is a thicker, more durable part than is common on UTV wheels, and larger, 5/16 grade-8 bolts make these wheels extremely strong and able to withstand a great deal of abuse. Fuel offers a lifetime structural warranty on all its wheels.
SUSPENSION AND DRIVELINE MODS
The RS1 has a very capable stock suspension package, but Fuel and O’Hara wanted more performance. HCR’s mid-travel Kit features boxed, +3-inch A-arms and boxed trailing arms that stretch the wheelbase 2 inches for added stability and add ground clearance to conquer brutal terrain. The kit includes RCV axles that are twice as strong as the stock parts. Walker Evans 2.5 shocks replace the stock Walker Evan 2.0s, and the rear 2.5s were treated to Walker Evans’ rear shock upgrade, which includes re-valving, springs, and crossover rings.
ENGINE AND TRANSMISSION TRICKS
Fuel and O’Hara wanted to improve on the RS1’s impressive responsiveness and acceleration, even with its heavier long-travel suspension and larger, tougher tires and wheels. To do that, the engine got a Madigan Motorsports clutch & air intake, Trinity Stage 5 full exhaust, EVO Powersports ECU stage 3 reflash, Energy Coil performance ignition coil kit and Ibexx Stage 2 clutch.
UPGRADING THE CONTROL ROOM
With the RS1 capable of higher speeds, it needed accommodations for the driver to match. A Simpson Pro Sport seat and Simpson five-point harness keep O’Hara comfortably in place. An Assault Ballistic D wheel offers more strength and legroom than the stocker. Assault’s quick-release fire extinguisher keeps the driver and RS1 safe and legal for tech inspection at races. PRP window nets complete the cabin.
Madigan Motorsports’ custom cage, Mojave front bumper and O’Hara’s own nerf bars and rear bumper ready the RS1 for rough racing. Glasskraft’s carbon fiber hood and cage cowl and a Gatorwrap full wrap give the Fuel RS1 a one-of-a-kind look. KC light bars keep the Polaris at full race pace at night.
With 110 horsepower pushing a light, compact chassis, a stock RS1 is a serious beast that keeps a driver on his toes. Fuel’s RS1 feels bigger, wider and faster, with the RS1 agility we like, but it’s more relaxed at speed, even in whooped-out or choppy terrain. Fuel’s Gripper T/R/K’s are true all-terrain performance tires with excellent grip on loose, rocky terrain, hardpack and even deep sand. If you want to build a truly race-ready RS1, do as Ryan O’Hara did with Fuel’s.