If your Legend Car runs the liquid-cooled Yamaha FZ-09/MT-09 triple, coolant is one of the cheapest levers you have on cylinder head temperature. We compare five race coolants across paved ovals, dirt, and road courses: SuperCool Extreme, Stay Frosty Race Ready, Ice Water, Engine Ice, and Liquid Performance HP Racing Coolant — including which ones survive a glycol-free tech inspection.

At the same rated spring rate, a 10-inch spring is not automatically softer, stiffer, or capable of producing more grip than an 8-inch spring. The longer spring primarily provides additional physical operating range. This comes at the cost of added spring mass and packaging. Whether this trade-off is worthwhile depends on how much suspension travel the car actually uses.

Learn how to choose the right oil for your Legend Car’s Yamaha FZ09 engine. This guide covers Yamaha’s 10W-40 recommendation, the pros and cons of 5W-30, oil change intervals, oil filter selection, and why we typically recommend zMAX 10W-40. Whether you’re focused on reliability, performance, or preventative maintenance, this article provides practical insights based on real-world racing experience and conversations throughout the Legend Car community.

Brake feel in a Legend Car is the result of hydraulic pressure, line compliance, piston area, and pad friction working together as a system. This article explains why many pavement racers run -03 front brake lines for a firmer, more responsive pedal and -04 rear lines for smoother rear brake application. It also explores how split pad compounds can create braking-induced rotation by increasing left-front braking torque, helping the car turn into the corner while maintaining r