Quick Summary
The FOMTOR Bicycle Handlebar Stem is a 70 mm stem with a 35 degree angle and 31.8 mm handlebar fit. It is described as a stem riser for bikes that use a 31.8 mm handlebar and a 28.6 mm front fork stem diameter.
This product centers on fit, angle, and stem length, so those are the main details to compare before choosing an offer. The stated weight is 140 g.
Key Details
| Detail | Product information and buyer relevance |
|---|---|
| Brand | FOMTOR, the product name used for this stem. |
| Product type | Bicycle handlebar stem for handlebar and fork fit checks. |
| Handlebar fit | 31.8 mm handlebar fit, which is the main compatibility point. |
| Front fork stem diameter | 28.6 mm, so the steerer diameter must match this size. |
| Length | 70 mm center distance of the two holes, which affects handlebar position. |
| Angle | 35 degree angle, which changes handlebar height and reach. |
| Weight | 140 g, a useful check for buyers comparing stem weight. |
What to Compare Before Buying
- Handlebar diameter: This stem is for 31.8 mm handlebars. Match that size exactly.
- Front fork stem diameter: The stated size is 28.6 mm. Confirm your bike uses the same steerer size.
- Stem length: The 70 mm length affects how far the handlebar sits from the steerer.
- Angle: The 35 degree angle changes handlebar height and riding position.
- Weight: The stated 140 g may matter if you are comparing stems by weight.
Compatibility, Size and Fit
This stem is intended for bikes that use a 31.8 mm handlebar and a 28.6 mm front fork stem diameter. Before buying, check both sizes on the bike you plan to use it with. The 70 mm length and 35 degree angle also affect fit, so compare them with the position you want at the handlebar.
Before You Decide
Confirm the 31.8 mm handlebar fit, the 28.6 mm front fork stem diameter, and the 70 mm length before choosing an offer. The 35 degree angle is part of the fit and position decision, so make sure it matches your setup.
Installation Fit Check
Before fitting, check that the stem’s steerer clamp can sit on the available steerer tube alongside any spacers. Follow the bicycle and stem manufacturers’ installation and torque instructions. If the fit or setup is uncertain, have a bicycle mechanic check it.
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