23mm Width (for 3825C 5025C 6025C 8825C option are 38 50 60 88 means rim depth, and 25C means rim width for 25mm). Matte (if you want glossy, tell me or remark at order there). 3k (if you want UD, tell me or remark at order there). Clincher (if you want tubular, tell me or remark at your order there). Novatec 171 -172(upgrade from novatec271 hub) front: 2 sealed bearings O.D:9100mm rear: 4 sealed bearings O. Please follow by your install tyres recommend psi. Spoke tension/rear wheel not-driver side. Spoke tension/Rear wheel Driver Side. Support Shimano/Sram Groupset 8/9/10/11S(if you want fit for campagnolo speeds, tell me or remark at order there). 1 pair of skewers/2 pair brake pads/rim tape, nipple. Use of special carbon fiber resin processing with high temperature. We don't offer service for problem caused by people damage. All pass EN14781 (SGS) standard test. Notice We take about 5-7working days for processing this wheelset!!! All of your order will be checked carefully before pack. If you need the products urgent. We have a quality assurance date which is 1 year. If the item is defective within 1 year due to quality issue, we will repair or replace it for free(according the products). This item is in the category "Sporting Goods\Cycling\Bike Tyres, Tubes & Wheels\Wheels & Wheelsets". The seller is "princessbike123" and is located in this country: CN. This item can be shipped worldwide.