Shimano Grx Fc-rx820

SHIMANO GRX FC-RX820 2x12-Speed CranksetCategory: Bike partsSubcategory: CranksAttributes: Gravel cycling, Sets---Elevate your gravel riding and racing performance with the SHIMANO GRX FC-RX820 crankset, a pinnacle of engineering for the modern adventurer. As a cornerstone of Shimano´s dedicated gravel component sets, this crankset is meticulously designed to strike the perfect balance between significant weight savings and optimal efficiency, ensuring you can conquer diverse and challenging mixed-terrain routes with confidence and speed.The SHIMANO FC-RX820-2 is engineered to meet the unique and segmented demands of gravel cycling. It features a sophisticated double chainring gearing system that provides smaller, more manageable gear steps. This is crucial for maintaining precise cadence control, allowing you to sustain your rhythm and hold your position in the group, whether you´re powering through a fast paceline or navigating technical, rolling hills. The gravel-optimized gear ratios are specifically tuned to help you preserve momentum and power transfer, even when the riding surface gets rough and unpredictable.At the heart of this system is the 2x12-speed design, which utilizes a versatile 48-31T chainring combination. This setup offers a significantly wider gear range, giving you the confidence to tackle any terrain that comes your way. The substantial 17T difference between the chainrings provides the low-end gearing necessary for scaling steep, loose climbs, while the high-end gears let you push the pace on fast descents and long, flat sections. This crankset ensures you always have the right gear for any situation, from competitive racing to epic all-day adventures. To ensure a perfect ergonomic fit and optimal biomechanics for every rider, the crankset is available in multiple crank arm lengths, including 170, 172.5, and 175 mm. Features:* Smaller gear steps for superior cadence control during mixed-terrain riding* Gravel-optimized gear ratios to preserve riding rhythm on rough and uneven surfaces* Wider gear range for maximum versatility across all conditions* A broad 17T front range that covers an extensive array of riding scenarios* Gear combination: 48-31T Technical Specifications:* Rear Speeds: 12-speed* Crank Arm Length (mm): 170, 172.5, 175* Gear Combination: 48-31T* Chain Guard: Without CG* Recommended bottom bracket | Press-Fit: SM-BB72* Recommended bottom bracket | Threaded (normal): SM-BBR60