MSV Racing 1985–2001 Honda CR500 “Petite” Billet Case Saver & Sprocket Guard

Protect the vulnerable engine cases on your legendary Honda CR500 with the MSV Racing Petite Billet Case Saver and Sprocket Guard, designed specifically for 1985–2001 Honda CR500R models.

The compact, fully radiused interior profile is engineered to help redirect a broken or derailed chain downward and away from the engine case. Precision CNC-machined from durable 6061-T6 billet aluminum, this direct-fit guard provides serious protection without the bulk of an oversized design.

Product Highlights

• Fits 1985–2001 Honda CR500R
• Helps protect the engine case from a broken or derailed drive chain
• Fully radiused interior profile helps guide the chain downward
• Precision CNC-machined from 6061-T6 billet aluminum
• Compact “Petite” low-profile design
• Accommodates front sprockets up to 14 teeth
• Recessed mounting-bolt pockets for a clean installation
• Includes the correct mounting fasteners
• Available in shiny aluminum, black anodized or red anodized finishes
• Black finish anodized to MIL-A-8625 specifications
• Designed and manufactured by MSV Racing

Protect a Difficult-to-Replace CR500 Engine Case

A loose, broken or derailed chain can bunch around the countershaft sprocket and strike the engine case with tremendous force. On a Honda CR500R, that damage can be especially costly because replacement cases are becoming increasingly difficult to find.

The MSV Racing Petite Case Saver places a strong billet-aluminum barrier around the countershaft sprocket area to help reduce the risk of serious case damage.

It is an important upgrade for:

• Vintage motocross racing
• Trail and dune riding
• High-horsepower CR500 builds
• Restorations
• Supermoto conversions
• Riders replacing a worn or missing factory guard

Fully Radiused Interior Profile

The interior of the MSV Racing Petite Case Saver is smoothly radiused rather than sharply squared.

If the chain breaks or leaves the sprocket, this curved profile is designed to help direct the chain’s forward movement downward and away from the vulnerable engine case instead of allowing it to bunch against a sharp internal edge.

While no case saver can guarantee protection in every chain failure, this purpose-built design provides an added layer of defense around one of the CR500 engine’s most vulnerable areas.

CNC-Machined 6061-T6 Billet Aluminum

Each case saver is precision-machined from 6061-T6 billet aluminum for:

• Excellent strength
• Accurate fitment
• Consistent sprocket clearance
• Resistance to bending and deformation
• Long-lasting durability
• A clean, high-quality appearance

The billet construction provides a rigid protective barrier while retaining a compact profile.

Petite, Low-Profile Design

The “Petite” design provides essential case protection without unnecessary bulk around the front sprocket.

It is engineered to accommodate front sprockets up to 14 teeth, making it suitable for common stock and performance gearing combinations.

Always verify sprocket, chain and case-saver clearance before operating the motorcycle.

Recessed Bolt Pockets and Included Hardware

The case saver features recessed mounting-bolt pockets for a clean, finished appearance.

Because standard fasteners may not seat correctly in the recessed design, MSV Racing includes the proper mounting hardware needed for installation.

Included

• One MSV Racing Petite billet case saver and sprocket guard
• Two correct recessed-pocket mounting fasteners

Available Finishes

Choose the finish that best complements your CR500 build:

Shiny Aluminum

A bright billet finish that highlights the precision-machined construction.

Black Anodized

A durable, understated finish anodized to MIL-A-8625 specifications.

Red Anodized

A bold performance-inspired finish that adds contrast to the engine and chassis.

Exact Honda CR500R Fitment

Fits:

• 1985 Honda CR500R
• 1986 Honda CR500R
• 1987 Honda CR500R
• 1988 Honda CR500R
• 1989 Honda CR500R
• 1990 Honda CR500R
• 1991 Honda CR500R
• 1992 Honda CR500R
• 1993 Honda CR500R
• 1994 Honda CR500R
• 1995 Honda CR500R
• 1996 Honda CR500R
• 1997 Honda CR500R
• 1998 Honda CR500R
• 1999 Honda CR500R
• 2000 Honda CR500R
• 2001 Honda CR500R

Important Fitment Note

Designed to accommodate front sprockets up to 14 teeth. Before riding, confirm adequate clearance between the case saver, chain and sprocket throughout the full range of chain adjustment.

Proper chain tension, alignment and maintenance remain essential. A case saver is an additional protective component and does not replace routine drivetrain inspection.

Protect Your CR500 Before Chain Damage Happens

The Honda CR500R is one of the most iconic two-stroke motorcycles ever produced, and its original engine cases are becoming harder and more expensive to replace.

Protect your investment with the MSV Racing 1985–2001 CR500 Petite Billet Case Saver and Sprocket Guard.

Compact protection. Precision billet construction. Built specifically for the CR500.