Quill Stem Adapter for Folding Bikes, 22.2mm to 28.6mm, Handlebar Riser
Upgrade your folding bike or multi-use setup with the Quill Stem Adapter for Folding Bikes. This sturdy aluminum alloy riser converts a threadedless quill stem to a threadless configuration, letting you raise the handlebar height for a more comfortable, upright riding position. Designed for compatibility with 22.2mm steerers and head tubes up to 28.6mm, it’s a lightweight, reliable solution that broadens a bike’s versatility without adding bulk.
Key benefits include a clean, firm interface that maintains steering precision while increasing rider comfort on longer rides or when you need a more relaxed posture. It’s ideal for bikes that use a quill system but you want the rigidity and adjustability of a threadless setup. The adapter applies to 22.2mm to 28.6mm Front Fork Head Tubes, making it a practical choice for folding bikes and other bikes where cockpit height needs a quick upgrade.
Benefits & Tips
- Increase rider comfort by lifting the handlebars 36–45mm, creating a more upright position for commuting or long rides.
- Convert threadedless quill setups to threadless compatibility, expanding options for stems, cockpit components, and upgrades.
- Compact, lightweight aluminum design (130mm length) is easy to install and remove, supporting frequent configuration changes between bikes or riding styles.
Product specifications
- Material: Aluminum alloy
- Fork Clamp Diameter: 22.2mm / 0.87"
- Handlebar Clamp Diameter: 25.1 – 26.5mm
- Height: 36 – 45mm
- Length: 130mm / 5.12"
- Base Diameter (Upper diameter): 1 1/8" (28.6mm)
- Steerer Tube Diameter: 22.2mm
- Origin: Mainland China
- Brand Name: NONE
Package includes:
- 1 Piece Bike Quill Stem Adapter
Warnings / Reminders
- Ensure compatibility with your fork head tube and handlebar clamp diameters before installation.
- Follow standard bicycle safety practices when installing or adjusting components; if unsure, consult a professional.
All electronic and mechanical equipment, devices and machines sold by InterCyprus to EU countries are CE certified and carry a two year warranty.
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