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Product review: Motul RBF660 brake fluid

Motul RBF660 brake fluid, around £18
Miles covered/time:
Six race meetings

What’s good? I hammer the brakes on my race bike, as you might expect. The caliper, pads, disc and master cylinder are all kept in top condition, so the fluid that links it all up has to be up to it.

I tried this race-spec fluid to see if there’s a gain to be had. There isn’t a noticeable improvement in feel or power over the brand-name standard DOT4 fluid I used before, but performance is more consistent.

I’ve not suffered any fade or gradual decline in braking – it seems to deal with the stress of racing for longer, and it hasn’t needed bleeding so frequently.

What’s not? The price. Around £18 for half a litre is a huge amount of cash – it’s by far the most expensive fluid that goes in my bike.

For the purpose of four eight-lap club races in a weekend, it’s overkill – cheaper stuff does the same job, and flushing fresh fluid through to maintain stopping isn’t a hassle.

For endurance races, or use on a faster, heavier bike where fade is more an issue it’ll make a difference. For my TZR250, I can’t warrant the outlay.

Contact: www.moto-direct.com
Rating: 3/5

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