Product code - 637143
Listing is for a pair of wheels (Front + rear wheels).
Brand - Madspeed7
High end 650B (27.5") (ETRTO 584x21) gravel/cyclocross specific wheelset
100% made in Taiwan (Rims, hubs & spokes all from Taiwan)
Super lightweight - Wheelset weight - 1680g
Choice of axle/hub type – QR or Thru Axle
Clincher / Tubeless Compatible
Precision hand built wheels
High precision technology, high strength aerodynamic sleeved rims, anodised sand blasted finish
4 dimensional drilling rims enhances wheels performance (The 4D spoke drilling technology is what makes this wheelset so special. Read below. This wheelset can last you a very long time without ever breaking a spoke)
Presta valve holes
Premium quality Taiwan NBK sealed bearings hubs - Front hub 2 sealed bearings / Rear hub 4 sealed bearings
HG Freehub is compatible with 8/9/10/11/12 speed HG cassettes
(Spacer included for use with 8/9/10 speed cassettes)
Sram XDR version is only compatible with 11/12 speed XD/XDR cassettes
Classic 6x pawls 72 clicks high efficiency system (better engagement rate & more immediate power transfer)
28x stainless steel high grade spokes front & rear with silver brass nipples
6-bolt disc brake mount
Will take both standard 650B tyres & road plus tyres up to 55C in width
Please note QR stands for standard quick release axles. For thru axle wheels, the 12mm maxles are not supplied. For the QR wheels, standard QR skewers will be supplied. If you are unsure of anything on this listing, please contact us and we will respond promptly.
WHY 4D drilling technology?
With standard wheels, the traditional drilling holes are vertical angle holes, the assembly holes and spokes holes are completely perpendicular to the rim center point. This process is more convenient for machining and proofreading, with high production efficiency. But when assembly the wheel group, the disadvantage is coming. Because the flange hole and spokes holes always have a 5 degrees angles in both longitudinal and radial directions, so the connection between spoke and spoke cap will always have a bend and can never be in a straight line. If the tension is a little high, the spokes has a higher chance of breaking when riding.
With the 4D technology drilling, the drilling angle is slightly inclined. According to the pulling angle of each spoke, it is in the longitudinal and radial direction, each offset is about 5 degrees, so that it is in line with the angle of the flange to ensure the nipples and spokes to form a straight line as much as possible, thus fundamentally solving the problem with spokes angle which massively reduces the chance of spokes breaking.
