TOSEEK Carbon Aluminum MTB Stem 31.8mm | 4 Angles & Lengths
TOSEEK Carbon Aluminum MTB Stem 31.8mm | 4 Angles & Lengths
TOSEEK Carbon Fiber + Aluminum Alloy MTB Bicycle Handlebar Stem
Upgrade your mountain bike setup with the TOSEEK Carbon + Aluminum Handlebar Stem. Engineered for riders who demand a perfect blend of strength and low weight, this stem features a carbon fiber surface paired with a robust aluminum alloy core. Choose from multiple rise angles and lengths to dial in your ideal riding position — whether you prefer an aggressive tuck or a more upright trail stance.
Key Features
- Hybrid Construction: Carbon fiber surface combined with high-grade aluminum alloy for exceptional strength-to-weight ratio — approximately 141g for the 35°/100mm configuration.
- Multiple Rise Angles: Available in 10°, 17°, 25°, and 35° — pick the angle that suits your riding style and body geometry.
- Multiple Lengths: Choose from 70mm, 80mm, 90mm, and 100mm to fine-tune your cockpit reach.
- Two Finish Options: Matte (default shipping) or glossy — simply leave a remark at checkout for glossy finish.
- Universal Fit: 31.8mm handlebar clamp diameter and 28.6mm (1-1/8") fork tube diameter for broad compatibility with standard MTB components.
- Stylish Design: Clean, modern aesthetic that looks great on any mountain or trail bike.
Specifications
| Brand | TOSEEK |
| Material | Carbon fiber surface + Aluminum alloy |
| Rise Angles | 10° / 17° / 25° / 35° |
| Lengths | 70mm / 80mm / 90mm / 100mm |
| Handlebar Clamp Diameter | 31.8mm |
| Fork Tube Diameter | 28.6mm (1-1/8") |
| Height | 36 – 45mm |
| Weight | ~141g (35° / 100mm; varies by size) |
| Finish | Matte (default) / Glossy (on request) |
| Country of Origin | Made in Mainland China |
Package Contents
- 1 × TOSEEK Carbon + Aluminum Bicycle Stem
Note: This product features a carbon fiber surface with an aluminum alloy main structure. Please review all specifications carefully before ordering. For glossy finish, leave a remark after placing your order or contact us directly. Minor size deviations may occur due to manual measurement. Colors may vary slightly from product images due to lighting and monitor settings.
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Frequently Asked Questions
Q: What handlebar diameter is compatible with this TOSEEK MTB stem?
A: This stem features a 31.8mm handlebar clamp diameter, which is the most common standard for modern mountain bike handlebars. Please confirm your handlebar diameter before purchasing.
Q: Can I get this stem in a glossy finish instead of matte?
A: Yes! The default shipping finish is matte, but glossy is available. Simply leave a note on your order or contact us after placing your order to request the glossy finish.
Q: Is the stem made entirely of carbon fiber?
A: No — this stem uses a carbon fiber surface layer combined with an aluminum alloy main body. This hybrid construction delivers a great balance of lightweight performance and structural durability at an accessible price point.
Q: What fork tube diameter does this stem fit?
A: This stem is designed for a 28.6mm (1-1/8") fork tube, which is the standard threadless steerer tube size found on the vast majority of mountain and trail bikes.
Production & Packaging Notice
To maintain high stock availability and fast shipping times, our items are sourced from multiple verified manufacturing facilities. While the core quality, materials, and product specifications remain identical, you may notice slight variations in the packaging design, manufacturing origin, or the wording of the printed instructions.