Customer Service (503) 832-7336
The Only Place For People Who Ride


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Free standard shipping on orders over $149
We ship to the lower 48 United States. Orders over $149 ship free; a flat rate applies under $149. Estimated delivery dates are shown at checkout based on item availability and the shipping option you choose.
We text or call to confirm sizing & fitment before we ship.
Every Factory SuperBike order includes a free expert check from real riders. Before we ship helmets and gear, we text or call to confirm your size and fit; for parts, we verify fitment to your bike. This is why we don't have to guess and you don't have to gamble.
Helmet & gear orders: reply to our text to confirm and your order ships, typically same day. No reply within 48 hours and we'll call you. Questions now? Call or text (503) 832-7336.
RadiusX 4.0 Clutch - RM 250
Updated EXP (expanding friction disk) assembly, Base material updated to provide better strength in high temperature environments, critical for the heat clutch systems create, Internal wall bases redesigned for strength and rigidity, which helps translate to a more connected lever feel for the rider, On the outside of the EXP disk, friction pads now match proprietary friction design found on Rekluse TorqDrive clutch plates, this design helps match oil flow characteristics on the clutch pack beneath, promoting improved cooling capability and consistent operation, EXP 4.0 wedges have been improved to now use rolling contact with built-in pins, Rolling pins versus sliding creates less friction and resistance, providing smoother engagement and a more responsive feel, creating stronger power delivery overall, More direct power delivery, improved durability, and rider-focused functionality, Engagement curve designs updated to better match modern motorcycle engine characteristics, More tuning options with varying wedge weights and EXP springs
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