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The Reaction Pro is all about the ideal blend of function, reliability and performance. That's why we began with the precision of Shimano's XT 1x12 gears, because they offer an enormous range and an unparalleled reputation for accuracy. We added Shimano hydraulic disc brakes for their reliable all-weather stopping performance to help keep you safe, whether you're out in the hills or battling across town. And we finished with the RockShox Judy Silver air fork, because it combines easy adjustability and a remote lockout with trail-smoothing alacrity. It's the complete package.Frame descriptionThe Reaction's sleek looks are thanks to its Smooth Welded head tube and seat tube junctions. It incorporates a threaded bottom bracket and Internal Cable Routing, plus a flat disc mount that integrates seamlessly with our kickstand mount and integrated mounting points for ACID mudguards and carrier. Trail-ready geometry includes a lower top tube and tapered head tube for more confident handling, and there's plenty of room to run wide, grippy and comfortable 2.25in tyres. And, as your skills increase, there's scope to fit a dropper post upgrade.

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STREEM G.62 Even with the Streem G.62 steel-spoke version, the weight remains at just 1,600 grams, and the price is reduced by an attractive 300 euros per set. For optimal stiffness during hard accelerations, 24 Sapim CX Ray spokes on both the front and rear wheels ensure stability and long-lasting durability. The G.62 is available with black decals. THE DEEPEST, WIDEST, AND FASTEST RIM WE KNOW. The mission was clear: a gravel wheel designed with uncompromising aerodynamics, perfectly tuned for modern gravel tires. And what can we say? The G.62 opens a whole new chapter in gravel racing. With a rim depth of 62 mm, an outer width of 45 mm, and an inner width of 27 mm, we’ve hit the sweet spot for today’s 45–50 mm tires! The wide inner width allows modern tires to be ridden at optimal air pressure, meaning: more grip, more comfort, and faster rolling performance. The combination of outer width, rim depth and tire ensures optimal aerodynamics—all perfectly coordinated and tested in the wind tunnel. HOW DO GRAVEL AND AERO GO TOGETHER? With a taller rim height of 62 millimeters and an impressive rim width of 45 millimeters, the new Streem G.62 wheels push the limits without compromising on weight. Why? Because modern gravel races are getting faster and faster, and with average speeds approaching 40 km/h, they place very specific demands on aerodynamics. Through extensive wind tunnel testing, we were able to maximize the efficiency of the new Streem G.62 wheels at high speeds while leveraging the full potential of our proven Streem Road wheels. The result is a gravel wheel that, even with a 50-millimeter-wide tire, matches the performance of the best aero road wheels in the wind tunnel. A STABLE AND COMFORTABLE RIDE To perform well in the wind tunnel, the tire should not be wider than the rim. With an outer width of 45 millimeters, the G.62 rim meets the requirements of modern gravel tires. Air flows over the tire and can re-establish contact with the rim edge. To prevent the tire from becoming excessively wide and ultimately protruding beyond the rim on both sides, the rim’s internal width must not be too large. With a sweet spot of 27 millimeters, we were able to meet both aerodynamic requirements and the demands of the riding experience. 27 millimeters provide sufficient lateral support at low tire pressures and allow the tire sidewalls to flex comfortably. With rims that have a larger inner width, comfort suffers increasingly because the sidewalls of the gravel tires stand too straight and flex noticeably less. At the same time, the Streem G.62 wheels are not only noticeably fast but, thanks to their high width and sophisticated rim shape, remain more controllable than the competition with lower rim heights—even in strong crosswinds. Sounds too good to be true? We thought so too, but not only wind tunnel measurements but also real-world experience at the Final Frontier in Patagonia proved the crosswind stability of the G.62. SAFE AND STRONG Like all our road and gravel wheels, the G.62 rims feature a rim flange with a hook. This ensures safety even at high tire pressures and effectively prevents the tire from coming off. Riders who prefer a more comfortable ride and let the tires do the work will benefit from the rim’s robust construction with an extra-wide flange. With an impact resistance of over 12.36 joules, the new gravel rim even meets our cross-country requirements for mountain bikes, up to a system weight of 130 kilograms. The rear wheel features our well-known Fade R hub with three pawls, which is also approved for e-drives with up to 60 Newton-meters of torque. SPECS Intended Use: Gravel Weight: 1530 g (CS), 1600 g (steelspoke) Inner Width: 27 mm Outer Width: 45 mm Rim Height: 62 mm Material Rim: Carbon Spokes: CS Carbon spokes 21h (CS), Sapim CX Ray 24h (steel spokes) Hub: Fade R Rim Profile: Hooked, Tubeless Ready Diameter: 622 Hub Dimension: 12x100, 12x142 Brake Disc: Centerlock Freewheel: Scope of Delivery: Aero Valve, Tubeless sealant Valve: compatible with Aero Valve System

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