Quick Summary
The Black Ops 5710 is a BMX quill stem with a 4-bolt handlebar clamp and a 0-degree angle. Its listed fit dimensions include a 50 mm stem length, a 21.1 mm quill diameter and a 22.2 mm bar clamp. Match these measurements to the fork and handlebar before choosing it.
Key Details
| Detail | Product information and buyer relevance |
|---|---|
| Model and type | Black Ops 5710 BMX quill stem, part number 5710. |
| Stem length and angle | 50 mm stem length and 0-degree stem angle. |
| Quill dimensions | 21.1 mm diameter and 5-1/2-inch quill length. Check the fork’s required quill fit and available insertion space. |
| Handlebar clamp | 22.2 mm bar clamp. Match this to the handlebar diameter where it is clamped. |
| Clamp design | 4-bolt, top-down bolt design. |
| Construction and finish | Described as alloy/steel construction; listed in black. |
| Quantity | Listed as one item. |
What to Compare Before Buying
- Check that the fork is designed for a 21.1 mm quill and can accommodate the listed 5-1/2-inch quill length.
- Match the 22.2 mm bar clamp to the handlebar diameter at the clamp area.
- Compare the 50 mm length and 0-degree angle with the dimensions and position needed for the intended setup.
Compatibility, Size and Fit
This quill-style stem is intended to install into a BMX fork tube. The listed dimensions do not establish compatibility with a particular bicycle. Confirm the fork’s quill requirements and handlebar clamp diameter for the exact setup. Use appropriate installation instructions for the bicycle and stem; these dimensions are not an installation procedure.
Before You Decide
Confirm the fork accepts a 21.1 mm quill, the handlebar fits a 22.2 mm clamp, and the 50 mm length and 0-degree angle suit the intended setup.











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