
Ritchey WCS 4-Axis Stem Stainless Bolt Kit M5 Silver OEM
Ritchey WCS 4-Axis Stem Stainless Bolt Kit M5 Silver OEM
Stage 21 Bikes
23582 Moulton Parkway
#111
Laguna Woods CA 92637
United States
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Ritchey WCS 4-Axis Stem Stainless Bolt Kit
Factory Replacement | M5 Hardware | 6-Piece Kit | 55050007001
The Ritchey Factory Replacement Bolt Kit is the genuine replacement hardware set for compatible WCS 4-Axis stems.
Using original-equipment hardware helps maintain the correct fit, finish, thread specification, and bolt lengths required by the stem. The kit includes six stainless steel M5 bolts in the two factory lengths used by the WCS 4-Axis stem.
Available from Stage 21 Bikes, your trusted source for hard-to-find OEM replacement parts.
Key Features
- Genuine Ritchey factory replacement hardware
- Designed for compatible WCS 4-Axis stems
- Stainless steel construction
- Factory-correct M5 thread specification
- Includes two bolt lengths
- 4mm hex / Allen tool interface
- Silver finish
- Complete 6-piece replacement set
- Ritchey MPN 55050007001
Kit Includes
- 4 × M5 × 0.8 × 16mm bolts
- 2 × M5 × 0.8 × 18mm bolts
6 bolts total.
Specifications
| Specification | Details |
|---|---|
| Brand | Ritchey |
| Model | WCS 4-Axis |
| Component | Stem Bolt Kit |
| Material | Stainless Steel |
| Thread Size | M5 |
| Thread Pitch | 0.8mm |
| Bolt Lengths | 4 × 16mm, 2 × 18mm |
| Tool Size | 4mm Allen / Hex |
| Color | Silver |
| Quantity | 6 Pieces |
| MPN | 55050007001 |
Compatibility
Designed as factory replacement hardware for compatible:
- Ritchey WCS 4-Axis stems
Compatibility Notes
- This kit includes M5 × 0.8 threaded bolts only.
- Verify your stem model before ordering.
- Bolt lengths are 16mm and 18mm and should match the original hardware configuration.
- Do not substitute different bolt lengths or thread pitches.
- Follow Ritchey's recommended stem installation and torque specifications.
- Stem and faceplate are not included.
Factory-Correct Replacement Hardware
Stem bolts are safety-critical hardware and should match the original dimensions and thread specifications used by the manufacturer.
Genuine Ritchey 55050007001 provides the correct M5 stainless steel hardware set for compatible WCS 4-Axis stems, making it an ideal replacement for worn, damaged, corroded, or missing original bolts.
Stage 21 Bikes carries genuine OEM replacement components and hard-to-find small parts for professional service and maintenance.


