Vertex Complete Engine Rebuild Kit – Honda CR85R / CR85RB Expert (2005 – 2007) (WR101-018 / 0903-0958)

Description

The Vertex WR101-018 Engine Rebuild Kit (0903-0958) delivers a full OEM-quality overhaul for the 2005-2007 Honda CR85R and CR85RB Expert two-stroke engines. This all-in-one kit includes everything needed to restore factory compression, throttle response, and smooth operation — all in one convenient box.

Built with Hot Rods and Vertex components, this kit is perfect for race prep, trail rebuilds, or high-rev youth MX engines that need professional-level durability and fitment.

What’s Included

✅ Hot Rods heavy-duty crankshaft (stock stroke with wrist pin bearing)
✅ Vertex piston kit (piston, rings, pin & clips)
✅ Complete engine gasket & O-ring kit (top + bottom end)
✅ Main bearing and seal kit
✅ Transmission bearing kit (includes output shaft collar and sprocket lock washer)
✅ Counter balancer bearing kit
✅ Water pump bearing and seal kit
✅ Oil seal kit

Fitment

📦 Fits the following models and years:

• 2005 Honda CR85R

• 2006 Honda CR85R

• 2007 Honda CR85R

• 2005 Honda CR85RB Expert

• 2006 Honda CR85RB Expert

• 2007 Honda CR85RB Expert

Key Features

• Complete 2-stroke engine rebuild kit (top + bottom end)

• OEM-level fitment and race-ready reliability

• Includes crankshaft, piston, bearings, and gaskets

• Restores compression and power delivery

• Ideal for youth MX racers and track-ready builds

Warranty Info

Manufactured by Vertex / Wrench Rabbit.
Warranty claims and support handled directly through Vertex or Wrench Rabbit.

Price & SKU

💲 Retail Price: $462.95
SKU: WR101-018 / 0903-0958
Estimated Shipping Weight: 8.45 lb
Handling: Ships next business day