Hot Cams complete 7.48mm Valve Shim Kit

The Hot Cams Complete 7.48mm Valve Shim Kit (HCSHIM01) is an essential shop asset for routine valve clearance maintenance on modern 250cc 4-stroke dirt bikes and a wide variety of Japanese multi-cylinder street motorcycles. Built to an exact 7.48mm outer diameter, this complete kit ensures you have the correct clearance adjustments on hand for high-revving, small-displacement engines.

Each shim is manufactured from premium cold-forged 4140 steel, engineered to withstand the extreme, high-RPM impacts generated by modern camshafts without compressing or fracturing. The kit includes 141 total shims covering 47 unique sizes, ranging from 1.20mm up to 3.50mm in precise 0.05mm increments. The exact thickness is permanently laser-etched onto the face of each shim for quick visual identification. To prevent sizes from mixing during transport or storage, the entire assortment is housed in a heavy-duty, compartmentalized plastic organizer case.

Features:

• Forged Construction: Manufactured from cold-forged 4140 steel to resist flattening and structural fatigue under high-RPM cam impact.

• Complete Size Range: Includes shims ranging from 1.20mm to 3.50mm in strict 0.05mm increments (47 different sizes).

• Multi-Pack: Contains three (3) individual shims of every single size, allowing you to easily adjust multiple valves simultaneously.

• Laser-Etched: Each shim features a high-contrast, laser-etched thickness measurement to eliminate tuning guesswork.

• Shop Organizer: Packaged in a durable, compartmentalized plastic storage case that keeps your sizes strictly sorted in the toolbox.

What's in the Box:

• 141x 7.48mm Valve Shims (3 of each size from 1.20mm to 3.50mm)

• 1x Compartmentalized Plastic Storage Box

Fitment Notes:

• OD Sizing: These shims feature a 7.48mm outer diameter. Always verify your specific motorcycle's required shim OD in the factory service manual prior to starting a valve adjustment.

• Common Applications: Widely compatible with modern 250cc 4-stroke machines, including the Honda CRF250R/X; Yamaha YZ250F, WR250F; Kawasaki KX250F; and Suzuki RM-Z250. Also fits many Japanese street and sport bikes.

Part Number: HCSHIM01