The Ryde Andra 40 rim brake version embodies Dutch excellence in wheels for cargo bikes, e-bikes, and heavily loaded touring bikes. Designed to withstand extreme stress, it is part of Ryde's Professional Series range and stands out with its original profile designed to support impressive loads while maintaining exceptional rigidity.

Technical Summary

The Andra 40 Rim Brake is a double-wall rim made of 6063 T6 aluminum, available in multiple sizes (20", 24", 26", 27.5", 28"/29") with 36-hole drilling with optimized directional orientation. Its CNC machined sidewall ensures perfect compatibility with all types of brake pads, while its 25 mm internal width allows mounting of wide tires from 28 to 69 mm. Approved for a maximum system weight of 180 kg, it is the reference for demanding applications: electric bikes, tandems, loaded touring bikes, and cargo bikes.

Technical Highlights

• "Smart Bead" directional drilling: Spoke holes are oriented at optimized angles (up to 8° radial / 2° axial) to improve tension distribution around the nipple head, reducing the risk of failure and increasing wheel longevity
• Reinforced pinned joint: The pin-assembled joint provides superior rigidity and strength compared to conventional welded joints, ideal for withstanding heavy load stresses
• CNC machined sidewall: The machined braking surface guarantees optimal braking power and modulation with rim brakes, with excellent durability
• Reinforced wall at nipple bed: Thickened and pre-drilled area ensuring safe and stable nipple mounting, minimizing the risk of tearing even under high tension (up to 1400 N)
• Wide tire compatibility: The 25 mm internal width allows for a modern tire profile, optimizing comfort, grip, and puncture resistance with sections from 44 to 65 mm

Geometry and Standards

The Andra 40 offers a rim height of 21 mm combined with a double-wall structure ensuring an excellent compromise between lightness, lateral rigidity, and resistance to buckling. The ETRTO 25C standard guarantees compatibility with a wide range of clincher tires. The 8.5 mm valve hole diameter allows standard Schrader valves to pass through. The 36-hole drilling promotes even stress distribution, crucial for heavy-load applications.

Recommended Applications

• Cargo bikes: Originally designed for this use, the Andra 40 handles the daily loads of urban and professional transport without flinching
• Electric bikes (e-bikes): Perfectly withstands the additional stresses induced by the weight of the motor/battery system and higher speeds
• Touring and travel bikes: Proven reliability for long-distance expeditions with heavy luggage on difficult roads
• Tandems and downhill bikes: Ability to absorb shocks and high loads safely

Available Variants

• 20-inch version (406 mm): Weight 600 g — ideal for folding cargo bikes and recumbent bikes
• 24-inch version (507 mm): Weight 745 g — intermediate format for compact cargo bikes
• 26-inch version (559 mm): Weight 825 g — MTB standard and utility off-road bikes
• 27.5-inch version (584 mm): Weight 850 g — balance between maneuverability and comfort for e-bikes and modern cargo bikes
• 28-inch / 29-inch version (622 mm): Weight 905 g — universal format for road, trekking, and urban e-bikes

All variants are also available in disc brake version (slightly higher weights: 610 / 760 / 840 / 875 / 935 g respectively), without CNC machined sidewall but with excellent resistance to buckling.

Finish and Durability

The pre-anodized black surface treatment offers durable protection against corrosion while ensuring a sleek and professional aesthetic appearance. CNC machining of the sidewalls ensures a uniform and high-performance braking surface, compatible with all types of brake pads (organic, semi-metallic). Ryde's Dutch manufacturing quality guarantees strict dimensional tolerance and long-term reliability.