BUCKLOS Adjustable Bike Stem 3D Forged Aluminum 90–145mm
BUCKLOS Adjustable Bike Stem 3D Forged Aluminum 90–145mm
BUCKLOS Adjustable Bicycle Stem – 3D Forged Aluminum Alloy
Dial in your perfect riding position with the BUCKLOS Adjustable Bike Stem. Crafted from premium 3D forged aluminum alloy, this stem combines lightweight durability with a wide ±80° angle range, letting you fine-tune handlebar height and reach for mountain bikes, road bikes, BMX, and more. Whether you're climbing steep trails or hammering flat tarmac, this stem keeps your cockpit locked in exactly where you need it.
Made in Mainland China.
Key Features
- Wide Angle Adjustment: ±80° adjustability for a fully customizable riding position — no compromise on comfort or control.
- 3D Forged Aluminum Alloy Construction: High-strength forging process creates a rigid, lightweight stem that handles demanding trail and road conditions.
- Multiple Length Options: Choose from 90mm, 110mm, 130mm, or 145mm to perfectly match your frame geometry and riding style.
- Universal Handlebar Compatibility: 31.8mm handlebar clamp diameter fits most modern MTB and road handlebars; also supports 25.4mm bars with included shim.
- 28.6mm Steerer Tube Clamp: Compatible with standard threaded and threadless fork steerer tubes.
- Durable Finish: Corrosion-resistant anodized surface for long-lasting good looks, ride after ride.
- Versatile Fit: Suitable for Mountain Bikes, Road Bikes, BMX, and more.
Specifications
| Brand | BUCKLOS |
| Material | 3D Forged Aluminum Alloy |
| Handlebar Clamp Diameter | 31.8mm (25.4mm compatible) |
| Steerer Tube Diameter | 28.6mm |
| Stem Height | 35mm |
| Available Lengths | 90mm / 110mm / 130mm / 145mm |
| Angle Range | ±80° |
| Weight (approx.) | 269g (90mm) / 293g (110mm) / 309g (145mm) |
| Compatible Bikes | Mountain Bike, Road Bike, BMX |
| Origin | Mainland China |
Why Upgrade Your Stem?
Your stem is the critical link between your fork and handlebars — a small change in length or angle can transform your riding comfort, handling confidence, and power transfer. The BUCKLOS adjustable stem gives you that flexibility without needing to buy multiple fixed stems. Set it, ride it, and re-tune any time your style or setup changes.
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Frequently Asked Questions
Q: What handlebar sizes is the BUCKLOS adjustable bike stem compatible with?
A: The BUCKLOS bike stem features a 31.8mm handlebar clamp diameter, which is the most common standard for modern mountain bikes and road bikes. It is also compatible with 25.4mm handlebars using an included or separately purchased shim adapter, making it highly versatile across different bike setups.
Q: What fork steerer tube size does this stem fit?
A: This stem is designed for a 28.6mm (1-1/8 inch) steerer tube diameter, which is the standard size used on the vast majority of threadless fork systems for mountain bikes, road bikes, and BMX bikes.
Q: How much angle adjustment does this stem offer?
A: The BUCKLOS adjustable stem provides an impressive ±80° angle range, allowing you to raise or lower your handlebar position significantly. This gives you the flexibility to switch between an aggressive, forward-leaning race posture and a more upright, relaxed touring or commuting position.
Q: Which length should I choose — 90mm, 110mm, 130mm, or 145mm?
A: Stem length affects your reach (how far you stretch to the bars) and your handling responsiveness. Shorter stems (90mm) offer quicker, more agile steering — popular on MTB and city bikes. Longer stems (130mm–145mm) provide a more extended reach for an aerodynamic position, favoured on road and gravel bikes. If you're unsure, measure your current stem length first, or consult a bike fit guide for your riding style.
Q: Is this stem suitable for mountain bikes and road bikes?
A: Yes! The BUCKLOS adjustable stem is compatible with mountain bikes, road bikes, BMX, and most other bikes using a 28.6mm steerer tube and 31.8mm or 25.4mm handlebars. Its forged aluminum construction handles the vibration and stress demands of off-road riding as well as long-distance road cycling.
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.