Sigma Slip­per Clutch for Kawasaki ER-6 £696

Motorcycle News (UK) - - Garage -

Tester Adam Child Time tested Three months/two events at Oliver’s Mount What’s good? My Light­weight TT bike is pro­duc­ing just short of 90bhp and the stan­dard ER-6 clutch can’t take the strain, not to men­tion that but there’s no slip ac­tion on the stock clutch mean­ing that there’s the po­ten­tial for the back wheel to lock dur­ing hard down­shifts. Sigma have re­solved this prob­lem with a sixspring clutch rather than the stan­dard five, which means you don’t have to preload the springs. You can use the stan­dard fric­tion plates, but with one added spring. I’ve used it at the last two meet­ings at Oliver’s Mount on my Light­weight race bike and it’s cut my lap time by around a sec­ond; re­ally im­pres­sive. Now I can slam down the gears and let the Sigma sys­tem con­trol the back torque to the rear wheel. It’s trans­formed the bike on the brakes and it al­lows me to free up brain power to con­cen­trate on other as­pects of my rac­ing.

What’s not? Not a huge amount. I’ve been bru­tal with the clutch and had no prob­lems, even after two hard race week­ends.

Con­tact www.sigmaper­for­mance.com Qual­ity ★★★ ★★ Value ★★★ ★★

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