Quick Summary
This adjustable bike stem riser is a bike stem extender kit for bikes with a 28.6 mm fork diameter and a 31.8 mm handlebar diameter. It combines height adjustment and angle adjustment, with stated adjustment up to 150 mm in height and 120 degrees in angle. The description also notes a three-dimensional forged alloy construction and an anodised surface finish.
It is presented as a mountain bike and road bike stem option, so the key choice is whether the fork and handlebar sizes match your bike exactly. The kit format also matters, because the product is made up of multiple parts rather than a single piece.
Key Details
| Detail | Verified information and buyer relevance |
|---|---|
| Product type | Adjustable bike stem riser kit for handlebar and fork extension. |
| Fork diameter | 28.6 mm. This must match the bike fork size. |
| Handlebar diameter | 31.8 mm. This must match the handlebar clamp size. |
| Height adjustment | 150 mm stated adjustment range. |
| Angle adjustment | 120 degree stated adjustment range. |
| Construction | Three-dimensional forged alloy construction. |
| Surface finish | Polished and anodised surface finish. |
| Kit contents | Two-part extender kit with washers, hexagonal wrenches, threaded rods, handle cap, screw cover and screws. |
What to Compare Before Buying
- Fork diameter: This model is for 28.6 mm forks, so check your bike’s fork size before choosing it.
- Handlebar diameter: The clamp size is 31.8 mm, which needs to match the handlebar diameter.
- Adjustment range: It states 150 mm height adjustment and 120 degrees of angle adjustment, so compare that range with the riding position you want.
- Kit format: It is supplied as a multi-part extender kit, so check that you want this style rather than a simple single-piece riser.
- Bike type: It is presented for mountain bikes and road bikes, but exact fit still depends on the stated diameters.
Compatibility, Size and Fit
The main fit check is the diameter combination: 28.6 mm at the fork and 31.8 mm at the handlebar. Both measurements matter, and both need to match the bike you plan to use it on. The adjustable stem format also means the final riding position depends on the chosen height and angle settings.
Because this is a stem extender kit, confirm the selected configuration before buying and make sure the included parts match the setup you need.
What Is Included
The kit includes a handlebar extension for the bike, a fork extension, washers, two hexagonal wrenches, threaded rods, a handle cap, a screw cover and six screws.
Setup and Correct Use
The stated installation sequence is to put the extender together, connect one end to the bike fork and the other end to the handlebar, then tighten the screws. An angle indicator is included on the adjacent part to help set the angle, and an opening in the bar allows the handlebar position to be seen.
For correct use, make sure the fork and handlebar diameters match before assembly and check the angle setting after tightening.
Before You Decide
Confirm the 28.6 mm fork size and 31.8 mm handlebar size before choosing this stem riser. Check whether you want the stated 150 mm height adjustment and 120 degree angle adjustment, and make sure the included kit contents match the setup you need.
