Super Adjustable Bike Stem Riser Extender Built With Tough Aluminum Alloy Fits 28.6mm One And One Eighth Inch Handlebars On Mountain Road Bikes And Bmx Adding Up To Four Inches Height For Less Back Strain And Awesome Riding Comfort

Four-Inch Adjustable Stem Riser for 1-1/8 in Handlebars
✔️ Single-unit 4-inch adjustable stem riser fits 1-1/8 in bars

This adjustable bike stem riser extender adds up to 100 mm (3.93 in) of handlebar height to most 1-1/8" unthreaded steer tubes, easing back strain and boosting riding comfort on mountain, road, and BMX bikes. Color: black.

✅ Height adjust up to 100 mm (3.93 in) with 5 gaskets
✅ 130 mm total length, adjustable gasket positioning for ride comfort
✅ Aluminum alloy, polished and anodized for corrosion resistance
✅ Fits 1-1/8 in unthreaded steer tubes; suitable for mountain, road, BMX
✅ Black finish with high-toughness design for safe use

💡 What is a bike stem riser extender used for and how does height adjustment help riders?

This handy accessory helps riders improve posture and control by raising the handlebar height.

• Height adjust up to 100 mm (3.93 in) with 5 gaskets
• Designed for 1-1/8 in unthreaded steer tubes common on mountain, road, BMX bikes
• Easy installation by connecting to the existing handlebar stand