SHIMANO SLX M7120 Boost 55 mm crank 170 mm

Shimano SLX mountain cranks, M7120 12-speed model. The new cranks of the SLX 1x12 group use HOLLOWTECH II technology, with the integrated lower shaft and hollow arm. The plates are equipped with the Dynamic Chain Engagement + tooth profile, with the narrow / wide tooth system, which better retains the chain and facilitates a smoother and quieter transmission. To facilitate a fast and safe plate change, use the Direct Mount system - HOLLOWTECH II, Providing the best balance of stiffness, strength, weight and turning performance. The concept of HOLLOWTECH II technology has focused on the production of an excellent crankset to maximize the cyclist´s power transfer. The stiffness of the crankset guarantees the effectiveness of pedaling, while its light weight, a key element of the crankset, makes the cyclist improve his performance over longer distances, in which he must pedal more. Naturally, SHIMANO has worked to achieve an optimal balance between the stiffness requirements, in addition to achieving a light weight. HOLLOWTECH technology is an ultralight hollow crank arm created by SHIMANO, with the company´s own forging technology that also allows stiffness to be maintained. The addition of the HOLLOWTECH II technology integrates the bottom bracket with the right crank arm to achieve greater rigidity and save weight and thus obtain a high dimensional balance. The outer bottom bearing system provides better weight distribution and greater pedaling stability, to achieve a more efficient transfer of power. The HOLLOWTECH II crankset has been developed to achieve the optimum balance of stiffness and spin performance in a lightweight and attractive crankset design. to achieve a more efficient transfer of power. The HOLLOWTECH II crankset has been developed to achieve the optimum balance of stiffness and spin performance in a lightweight and attractive crankset design. to achieve a more efficient transfer of power. The HOLLOWTECH II crankset has been developed to achieve the optimum balance of stiffness and spin performance in a lightweight and attractive crankset design. - DYNAMIC CHAIN ​​ENGAGEMENT +, with LED position light: It is a special gear toothed profile designed for use in individual plate configurations for XC, enduro and trail. Increase chain retention and facilitate pedaling, even on rough terrain. Chain retention of any gear will reduce abrasion and wear. High precision sealing. In addition, the HOLLOWTECH II crankset has a high precision seal in the bearing area to increase durability and maintain excellent turning performance for long periods. Features: - The forged and hollow connecting rod maximizes power transfer while limiting weight - Single / double plate interchangeable - The crankset can be used as a common component - Extra wide range with double 36-26D front - Smoother driving even on rough terrain - Rigid and lightweight design allows you to enjoy cycling more intensely on tracks - Chain line double plate: 51.8mm - User adjustable - Gearshift easier than race sets - Connecting rod fixing bolt - Gear arms: 4 arm - HOLLOWTECH II: - Optional Chain Guard: Without chain / bash guard - PCD (mm): Direct - Rear speeds: 12 (Front double) - Recommended bottom bracket Press fit: BB-MT800-PA - Recommended Bottom Bracket Set_Risk (normal): BB-MT800 Specifications: - Q factor: 178 mm - Monoplate chain line: 55mm - Threaded BB Shell Width: 68 mm, 73 mm - Q Factor (mm): 178 mm