http://www.joykiebikes.com/city-bike/trekking-bike/ ModelJK2080019-53 Frame700C CITY AL 6061 Fork700C AL 6061 HandlebarUUR HB-335PG 脴22.2*脴31.8*660L H=35mm AL Stem1-1/8*脴31.8mm + 17掳 H=40mm E=80mm SaddleVADER CITY SADDLE ChainwheelSHIMANO ALFINE FCS501 45T ChainKMC S1 PedalFEIMIN FP-980A F/ DeraileurNA FreewheelSHIMANO 20T BrakeF&R:SHIMANO ALFINE S700 HYDRAULIC DISC ShifterSHIMANO ALFINE INTER-8 SL-S503 RimSTARS AL DOUBLE Rim 14G*36H TyreSCHWALBE HS450 700*40C F/V BB SetFP-B908NT BC1.37"*24T-BSA R/HubSHIMANO ALFINE INTER-8 SG-S7001-8 14G*36H Seat PostUUR SP-710 脴30.4*350MM AL JK2080019-53 is a 8-speed bike that comes with rear racks. This extra storage option makes carrying briefcases or backpacks super easy 鈥?this is a great bike for someone who wants to switch up their work commute. Suitable for long distance cycling trips, can also be used for daily commuting. Comfortable and relaxed geometrical design of the frame, with a strong load capacity. With 6061 aluminum frame, it is very solid and reliable. In the frame color and decals we also carried out a very careful design, frosted texture is very high-end. In addition to our brand logo on the frame, but also added the same color jumping dots, so that the frame looks more lively. The whole transmission system is Shimano, the chainwheel is SHIMANO ALFINE FCS501 45T, the freewheel is Shimano 20T with SHIMANO ALFINE INTER-8 SG-S7001-8 14G*36H hub, and the shifter is SHIMANO ALFINE INTER-8 SL-S503. The 8 speed switches allow you to easily handle the ups and downs on the road. The brake adopts F&R:SHIMANO ALFINE S700 HYDRAULIC DISC, the braking force is strong and is not affected by rain and bad road conditions. The wide and soft city saddle greatly improves the riding comfort. The tyre adopts SCHWALBE HS450 700*40C F/V, which has strong wear resistance. In addition, the front is equipped with dynamo light, so that you do not have to be afraid to ride in the night without street lightsTrekking Bike factory website:http://www.joykiebikes.com/city-bike/trekking-bike/