The Seido Geon is a lightweight, race-ready aluminum wheelset for gravel and all-road bikes in 27.5 inches (650B).

The asymmetric rims with a 23 mm internal width, 24 straight-pull spokes each, and triple-butted Pillar spokes combine low weight with high stiffness and rapid acceleration.

A ratchet freehub system ensures direct power transfer and reliable operation, while the tubeless-ready rims enable a modern tubeless setup.

Highlights:

• Lightweight aluminum wheelset: the set weight of 1524 g supports rapid acceleration
• Ratchet freehub system: enables direct power transfer and high reliability
• Asymmetric rims: support a stiff and balanced wheel build
• Straight-pull spokes: 24 triple-butted spokes per wheel provide high stiffness with low weight
• Tubeless Ready: pre-installed tubeless rim tape and included aluminum valves make conversion easier

Technical details:

• Manufacturer: Seido
• Model: Geon
• Type: Wheelset (front and rear wheels)
• Intended use: Gravel, all-road, road
• Wheel size: 27.5 inches (650B)
• Weight: 1524 g (set, incl. tubeless rim tape)
• ETRTO: 23-584
• Rim material: Aluminum alloy
• Rim type: Hooked / Crocheted
• Internal rim width: 23 mm
• Rim height: 25 mm
• Recommended tire width: 28–65 mm (1.10–2.56 inches)
• Rim profile / technologies: asymmetric rim design
• Tubeless system: Tubeless Ready
• Hub type: Front: straight-pull hub with TPI bearings / Rear: straight-pull hub with TPI bearings
• Brake system: Disc
• Axle standard: Front: 12x100 mm / Rear: 12x142 mm
• Freehub standard: Shimano HG
• Freehub system: Ratchet
• Spokes: Pillar PSRTB2016 straight-pull, triple-butted, 2-cross front and rear
• Nipples: Pillar DSN 14G
• Spoke hole count: Front: 24 / Rear: 24
• Maximum system weight: 110 kg
• Color: Black

Scope of delivery:

• 1 x Seido Geon front wheel 27.5 inches, 12x100 mm, Disc
• 1 x Seido Geon rear wheel 27.5 inches, 12x142 mm, Disc, Shimano HG freehub
• 1x Pre-installed tubeless rim tape
• 2x Aluminum tubeless valves (not installed)
• Note: Brake rotors not included

Product ID: SEIDO-GEON-23-584-650B-HG-DO | EAN: 4055822524643

Light, direct, and designed for fast gravel and all-road riding - a modern aluminum wheelset with a reliable ratchet freehub.