Quick Summary
The LUNJE Bike Stem Riser Extender is an aluminium adapter for 1-1/8" 28.6 mm fork stems. It is described as suitable for mountain bikes, road bikes, MTB and BMX, and the product page offers six length options: 90 mm, 115 mm, 135 mm, 150 mm, 180 mm and 210 mm.
This is the type of part to compare carefully against your existing fork stem size and the amount of handlebar height change you want. The length you choose is the main variation, so the selected size matters as much as the bike type.
Key Details
| Detail | Verified information and buyer relevance |
|---|---|
| Product type | Bike stem riser extender for raising handlebar height. |
| Stem size | Fits 1-1/8" (28.6 mm) fork stems, so this is the key fit check before buying. |
| Use types | Listed for mountain bikes, road bikes, MTB and BMX. |
| Length options | 90 mm, 115 mm, 135 mm, 150 mm, 180 mm and 210 mm. Choose the length that matches the height change you want. |
| Material | Aluminium adapter. |
What to Compare Before Buying
- Stem size: Check that your fork stem is 1-1/8" (28.6 mm) before choosing this part.
- Length option: Select from 90 mm, 115 mm, 135 mm, 150 mm, 180 mm or 210 mm depending on the handlebar height change you want.
- Bike type: It is listed for mountain bikes, road bikes, MTB and BMX, so match the part to your own build and cockpit setup.
- Material: The aluminium construction is a useful check if you want a lightweight metal adapter.
Choosing the Correct Version
The main decision is the length. The available sizes are clearly separated, so confirm the exact extension you want before selecting an offer. Also check the 1-1/8" 28.6 mm stem fit, since that is the fixed compatibility point for this model.
Before You Decide
Confirm your fork stem size first, then choose the required length from the available options. If your bike does not use a 1-1/8" (28.6 mm) stem, this part is not the right match. Check the selected size carefully before choosing an offer.
