Used for brake systems of ordinary bikes, mountain bikes and road bikes. Rotor diameter: 160 mm; Freewheel Threaded Hubs, Hole distance of 48mm, an inner diameter of 34mm(approx) Position: Front / Rear. F-160mm/R-140mm. F-180mm/R-160mm. ROTOR MOUNTING BOLTS are included Note: F160 Front Brake: (Also named F160/R140) If installed at front wheel, it fits 160mm rotor, but if installed at rear wheel, it fits 140mm rotor. R160 Rear Brake: (Also named F180/R160) If installed at front wheel, it fits 180mm rotor, but if installed at rear wheel, it fits 160mm rotor. Package Content: Mechanical Bike 160mm Rotor Front and Back Brake Disc Kit x 1 Please check the descriptions carefully and confirm the specification of your original brake disc before purchg! If there is any problem with this product, please kindly contact us first. We guarantee that we will help you exchange the products for free under 1 year warranty.

Caliper Holders are NOT included but are required. This kit works best with our motorized bicycle frames and KMB frames. This kit comes with 2 mounting adapter, your hub need to either have the same 6 bolt pattern to mount the rotor directly or you can use the mounting adapter on your threaded hub (1.37 x 24 tpi). Center 6 bolt pattern diameter on rotor is 48mm. Complete 26" Mechanical Disk Brake Kit, Front and Back - 160mm rotor diameter.

Date First Available: July 22, 2017. Best Sellers Rank: #66,846 in Sports & Outdoors. Customer Reviews: 4.0 out of 5 stars 379 ratings 4.0 out of 5 stars. : B07458MXNB. Manufacturer Part Number: ?BlueSunshine. Is Discontinued By Manufacturer: ?No. Package Dimensions: ?7.91 x 7.2 x 2.2 inches. Item Weight: ?2.44 pounds. Brand: ?BlueSunshine. Manufacturer: ?BlueSunshine.