Product Description Alfine internally geared hub SG-S7001-11 by Shimano - enormous range The Shimano Alfine SG-S7001-11 internally geared hub offers eleven optimally stepped gears with an overall gear ratio of over 400 percent (Inter-11). It has been designed for city, touring and e-bikes with Center Lock disc brakes. Its improved internal structure compared to predecessor models, the integrated shifting aid and the power modulator ensure powerful, reliable operation. In addition, the internally geared hub is pleasantly quiet. 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 S7000Application:City & TouringGears:11-speedBrake Type:Center Lock DiscAxle Type:10 mm bolt-on axleOver Locknut Dimension:135 mmSpoke Hole Count:32 hole, 36 holeTechnical Information:Range:409 %Material:AluminiumTechnology:Inter-11Axle 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-S700Shifting Unit:CJ-S700Resistance Unit:Disc, V-BrakeDropouts:horizontal without derailleur hanger*, standard type without derailleur hanger*, adjustable, vertical with derailleur hangerChain Tensioner (for vertical dropouts):CT-S500, CT-S510Sprocket:CS-S500, SM-GEARCrank:FC-S501Chain:super narrow 9-speed, HG 8-speed (1/2 x 3/32" )E-Bike:EP8 EP801, EP8 EP800 for Urban / Touring, EP6 for Urban / Touring, STEPS E6100, E6180, E5000, E5080 * not recommended for disc brakes Features:optimised inner construction for better gear changesbetter performance on e-bikes and conventional bicyclestop normal orientationsilent freehubshift servoshift power modulatorhigh efficiencyanodisedTechnology:Inter-11 11-speed gear hubs from Shimano with Inter-11 technology are designed for disc brakes. They feature helical gearing for a smooth and comfortable ride. The roller clutch enables low-noise operation. The needle bearing delivers high drive efficiency as well as durability and is very easy to maintain. Inter-11 gear hubs are characterised by a wide gear ratio range, which makes them suitable for different types of terrain. Gear Change Support Gear Change Support is a shift servo technology on Shimano gear hubs. 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-SGS700111BLsliver 32 hole:I-SGS700111BSblack 36 hole:I-SGS700111ALsliver 36 hole:I-SGS700111ASContents:1 x Shimano Alfine SG-S7001-11 internally geared hub1 x Shimano Center Lock cover Weight: black | 32 | Internal gear hub | Hub gears: 1665 g Manufacturer: Shimano Europe B.V. High Tech Campus 92 5656 AG Eindhoven Netherlands info@shimano-eu.com