SQlab
✓Price
$41.99
Aartner Adjustable Bike Stem 31.8mm, ±60 Degree Bicycle Handlebar Stem Riser for Mountain Bike, Road Bike, E-bike, 28.6mm Front Fork Stem Extender, Dual-Screw Locking No-Slip Handlebar Riser (85mm)
★★★★★
$41.99
Quantity
1
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About this item
- [SAY GOODBYE TO BACK PAIN & NECK STRAIN] Stop forcing your body to bend over painful angles. This ±60° adjustable bike stem riser allows you to customize your handlebar height and angle perfectly, achieving a comfortable upright riding posture. It effectively relieves pressure on your lower back, neck, and shoulders, transforming painful long commutes into smooth, enjoyable journeys
- [DUAL-SCREW LOCKING & ZERO-SLIP STABILITY] Engineered for ultimate safety, our handlebar stem features a heavy-duty dual-screw locking system and an extra-wide 49mm clamping surface. This advanced integration provides maximum gripping power, drastically reduces riding vibrations, and completely eliminates shifting or anti-flip issues—even during high-speed e-bike acceleration or rugged trail riding
- [UNIVERSAL UPGRADE FOR DAILY RIDES & TRAILS] Available in 3 lengths (85mm, 100mm, 120mm) to match your precise body mechanics. Whether you are navigating urban city streets on a hybrid commuter, cruising on an e-bike, or exploring light mountain trails, the integrated clear laser-engraved scale allows you to adjust and lock your perfect geometry in seconds for tailored control
- [PREMIUM 6061 ALUMINUM & PRECISE FIT] Crafted from heavy-duty, rustproof matte aluminum alloy with a premium sandblasted finish, this stem withstands all weather conditions without fading or corroding. [CRITICAL COMPATIBILITY] Universally fits handlebars with a 31.8mm (1-1/4") clamp diameter and front fork steerer tubes with a 28.6mm (1-1/8") diameter. Please measure your bike dimensions accurately before purchasing to ensure a flawless fit
- [ALL-IN-ONE READY IN MINUTES] No trips to the bike shop or messy toolboxes required. Our user-friendly design arrives boxed with everything you need for immediate setup, including both 4mm and 5mm Allen keys. Ideal for casual riders, daily commuters, and cycling hobbyists looking for a quick, hassle-free performance and comfort upgrade
Product details
Customer reviews
What customers say about Bigamart
10 Trustpilot reviews total, with 2 shown at a time.
Trustpilot
★★★★★
Excellent
4.5 average rating
S
Sigalit
🇮🇱 · January 2026
★★★★★
I wrote to Bigamart's customer support and they accompanied the process of reshipping the item until it finally arrived. I felt a genuine effort to solve the problem till it was finally solved.
V
Verified buyer
🇦🇺 · November 2025
★★★★★
The package was here in Australia from England in a few days — so quick! Something was missing and they refunded it straight away. Pretty happy with these guys.
Showing 1–2 of 10 reviews
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