Quick Summary
The sourcing map 25.4mm Bike Stem is a 45 mm aluminium alloy bicycle stem in grey. It is made for a 25.4 mm handlebar diameter and a 28.6 mm front fork stem diameter, with a length of 45 mm measured between the centre points of the two holes.
The stem is described as having a double-lock safety system, anti-slip calibration, a reinforced clamping mechanism and a four-bolt handlebar clamp. It is supplied as 1 piece.
Key Details
| Detail | Verified information and buyer relevance |
|---|---|
| Product type | Bike stem for bicycle handlebar and fork connection. |
| Colour | Grey. |
| Handlebar diameter | 25.4 mm. This must match the handlebar size. |
| Front fork stem diameter | 28.6 mm / 1-1/8". This must match the fork steerer size. |
| Length | 45 mm, measured as the centre distance of the two holes. This affects reach and cockpit position. |
| Material | Heat-treated aluminium alloy with an anodised surface. |
| Included quantity | 1 piece. |
What to Compare Before Buying
- Handlebar diameter: This stem is for a 25.4 mm handlebar, so the handlebar size must match exactly.
- Fork steerer diameter: The stated front fork stem diameter is 28.6 mm / 1-1/8", so check your fork size before ordering.
- Length: The 45 mm length affects how far the handlebar sits from the fork. Compare it with the riding position you want.
- Clamp style: The stem uses a four-bolt handlebar clamp and a double-lock design, so the handlebar and stem must suit that setup.
Compatibility, Size and Fit
This stem is described as suitable for road bikes, mountain bikes, BMX, MTB and folding bikes. The most important check is the exact diameter pairing: 25.4 mm for the handlebar and 28.6 mm for the front fork stem.
If either measurement does not match your bike, a different stem size is needed. The 45 mm length is also part of the fit decision because it changes the handlebar position.
What Else You May Need
A torque wrench is mentioned for tightening the bolts within the specified range. Check that you have the correct tool before fitting the stem.
Before You Decide
Confirm the 25.4 mm handlebar size, the 28.6 mm front fork stem diameter and the 45 mm length before choosing this stem. Also check that your fitting tools and bike setup suit a one-piece stem in grey.
