Jims
JIMS, rocker arm shaft kit & hardware for M8
JIMS, rocker arm shaft kit & hardware for M8
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Precision machined from a low alloy nickel; chromium; molybdenum case hardened steel. Offers .0005" paralell tolerance on the flats of the shafts. Complete with a special stud & nut kit from 4130 steel for precision ''torque steady'' installation of the rocker arm shafts. Perfect for performance applications with increased spring pressure. Upgraded replacement for the OEM 17300053 (front exh; rear int); 17300055 (front int; rear exh) and 17300059B (set).
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Not sure it fits?
Ask on WhatsAppPick your bike at the top of the page to see which parts are listed for it. For anything not listed, send us your VIN on WhatsApp and we'll confirm the fit before you order.
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Workshop installation
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Founder-led aftersales
Get in touchQuestions after fitment? You'll speak to the people who installed it. We answer email and WhatsApp Tuesday to Sunday, 11am–7pm.