Fully assembled, professionally fabricated SR1 platform built to SR1 Racing specifications.
Install your 2007–2014 Yamaha R1 engine (integrated transmission) and finalize wiring for a competitive short course race package.
DRIVETRAIN SYSTEM
In-house manufactured
Built to SR1 Racing specifications, this chassis features a fully engineered engine mount and chain drive system designed specifically for the 2007–2014 Yamaha R1 platform.
All major drivetrain components — including mounts, drive hubs, carriers, splined shafts, and hardware — are manufactured in-house by Weller Racing to ensure precise alignment, durability, and long-term parts support.
-
Baseline short course gearing installed (adjustable within SR1 Racing rules)
-
Replacement parts available directly from Weller Racing
SUSPENSION SYSTEM
FOX shocks
Built to SR1 Racing specifications, the suspension package is centered around Weller Racing–manufactured control arms, knuckles, and steering components.
All suspension components are fabricated in-house to ensure proper geometry, strength, and repeatable alignment.
-
Professionally valved FOX race shocks (competitive short course baseline)
-
Weller Racing rear sway bar installed for improved balance and cornering control
-
Suspension components powdercoated for durability and finish
-
Final spring rates and tuning can be tailored to driver weight and track conditions
STEERING SYSTEM
400W EPS
Equipped with a 400-watt electric power steering system to reduce driver fatigue and improve precision in rough track conditions,
integrated with Weller Racing steering components for reliability and serviceability.
BRAKING SYSTEM
Wilwood + Bias
Wilwood performance braking system with stainless lines and an adjustable brake bias assembly for front-to-rear tuning based on track conditions and driver preference.
CLUTCH & SHIFTER
Hydraulic lever
Hydraulic Magura-style clutch conversion retaining a lever mounted on the shifter assembly (no pedal).
Provides improved feel, consistency, and reliability under race conditions.
COOLING SYSTEM
Weller Racing engineered
Proprietary Weller Racing cooling system designed for sustained short course heat loads, with optimized radiator placement,
airflow routing, and a service-friendly plumbing layout. Fully installed and engine-ready for 2007–2014 R1 integration.
FUEL SYSTEM
Race-ready
Race fuel cell with complete fuel plumbing, pump, and filtration system installed.
Built for reliability, accessibility, and SR1 Racing compliance.
CHASSIS & PROTECTION
Built for contact
Complete body panels, skid plates, front and rear bumpers, and a front rock screen for debris protection.
The chassis is finished in Steel-It for corrosion resistance and durability under race conditions.
Body panels are powdercoated for a professional race-ready appearance.
SAFETY EQUIPMENT
Driver only
Built to meet SR1 Racing rules, the safety package includes race seat and harness, single driver window net,
fire extinguisher system, and helmet air system.
ENGINE COMPATIBILITY & BUILD TIME
Important
Designed specifically for 2007–2014 Yamaha R1 engines (integrated transmission — no separate transmission required).
Other engine years require modification and are not supported in this configuration.
Build time: 6 months. Each chassis is built to order with professional race-level fabrication and assembly.
