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Product Description Alfine Di2 internally geared hub SG-S7051-8 by Shimano - high efficiency The Shimano Alfine Di2 SG-S7051-8 electronic internally geared hub convinces with its high range (over 300 %), optimum efficiency and narrow gradation. This is an 8-speed internally geared hub for Center Lock disc brakes. The shift servo ensures pleasantly low operating forces. The SG-S7051-8 is available in black and silver and will also cut a fine figure on your city, touring or e-bike. Guidelines for Replacing E-bike Components:Before you replace components on your e-bike, please read through the guidelines for component replacement for CE-marked e-bikes/pedelecs with pedal assistance. Specifications:Series:Alfine Di2 S7050Application:City & TouringGears:8-speedBrake Type:Center Lock DiscAxle Type:10 mm bolt-on axleOver Locknut Dimension:135 mmSpoke Hole Count:32 hole, 36 holeTechnical Information:Range:307 %Material:AluminiumTechnology:Inter-8Axle Length:187 mmSpoke Size:13 gauge (2.3 mm) / 14 gauge (2.0 mm)Pitch Circle Diameter:92.6 mmFlange Diameter:104.3 mmFlange Width:3.2 mm right, 3.2 mm leftFlange Distance:57.3 mmOffset:3.15 mmCompatibility:Small Parts Set:SM-S705Motor Unit:MU-UR500 (with cable EW-SD50), MU-UR510 (with cable EW-SD300)Chain Tensioner (for vertical dropouts):CT-S500, CT-S510Sprocket:CS-S500, SM-GEARCrank:FC-S501Chain:CN-HG93, CN-HG71E-Bike:EP8 EP801, EP8 EP800 for Urban / Touring, EP6 for Urban / Touring, STEPS E6100, E6180, E5000, E5080Features:silent freehubshift servoshift power modulatorhigh efficiencyanodisedoptimised overall riding comfort and efficiencyhigher shifting capacity even with the high chain tension typical for e-bike motorsoptimisation: suitable for both e-bikes and conventional bicyclesTechnology:Inter-8 Shimano 8-speed gear hubs with Inter-8 technology have a total gear ratio of over 300 percent. Due to the close gradation of the gears, they enable a smooth, efficient cadence and thus greater comfort while riding. Gear Change Support Gear Change Support is a shift servo technology on s. It ensures that you can downshift quickly, precisely and without using a lot of force, as it uses part of the pedal force for this process. The pedal force acts against the shift cylinder to overcome its counterpressure and execute the gear change. The shifting force is thus reduced by 40 %. Manufacturer Numbers:black 32 hole:I-SGS70518BLblack 36 hole:I-SGS70518ALsliver 32 hole:I-SGS70518BSsliver 36 hole:I-SGS70518ASContents:1 x Shimano Alfine Di2 SG-S7051-8 internally geared hub1 x Shimano Center Lock cover Weight: black | 32 | Internal gear hub | Hub gears: 1670 g Manufacturer: Shimano Europe B.V. High Tech Campus 92 5656 AG Eindhoven Netherlands info@shimano-eu.com
