Quick Summary
The Ritchey Comp 4-Axis 30D is a bike stem with an 80mm reach, a 31.8mm bar clamp, and an adjustable +/- 30 degree body. It is made for riders who want to fine-tune handlebar height and cockpit length on a 1-1/8 inch threadless steerer.
The adjustable angle gives this stem a wider fit range than a fixed-angle stem, while the 80mm reach keeps the focus on shorter cockpit setups.
Key Details
| Detail | Product information and buyer relevance |
|---|---|
| Brand | Ritchey. Useful for confirming the exact stem line. |
| Model | Comp 4-Axis 30D. This identifies the adjustable stem version. |
| Reach | 80mm. A key fit dimension for cockpit length. |
| Bar clamp diameter | 31.8mm. Match this to the handlebar clamp size. |
| Steerer size | 1-1/8 inch (28.6mm) threadless steerer. Check fork compatibility before buying. |
| Angle | +/- 30 degree body. This allows a raised or lowered handlebar position. |
What to Compare Before Buying
- Clamp size: The 31.8mm bar clamp must match the handlebar clamp area.
- Steerer fit: The stem is made for a 1-1/8 inch threadless steerer, so confirm the fork matches.
- Reach: The 80mm reach affects cockpit length and riding position.
- Angle range: The +/- 30 degree body changes handlebar height, so compare it with the position you want.
Choosing the Correct Version
Check the selected reach, clamp diameter, and steerer size before choosing an offer. This stem is the 80mm version, so riders comparing different fit options should make sure that length matches their setup.
Before You Decide
Confirm the 80mm reach, 31.8mm clamp, and 1-1/8 inch steerer fit before choosing this stem. If you need a different cockpit length or clamp size, compare another version with the measurements that match your bike.
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