Rim: CONTEC "Zen 28 Disc", 25-622, 32 hole, for disc brake, load capacity up to max. 150 kg, (0.349.819/3) Hub: CONTEC "Eroq DB", 8-/9-/10-/11-speed, cassette, Shimano HG mounting, hollow axle for quick release, incl. quick release, 6-hole disc brake holder, installation width 135 mm (0.747.624/4), suitable for E-bikes Spokes: 2.00 Stainless steel, black Bumpy cobblestone streets in the old town, tram grooves and curbs - everyone who cycles on an (e) bike in the city knows these challenging places along their cycle route. Your wheels need to be able to withstand some of these challenges. But what actually is a good wheel? With the CONTEC Zen Disc Eroq 25 rear wheel in the 28" version you don't have to worry about that. The wheel is designed for a maximum load of 150 kg system weight. This means that it is also suitable for rides with a lot of luggage, for heavy cyclists and for heavy E-bikes. The built-in EROQ cassette rear hub has an aluminum body with a hollow axle and is attached to your bike with a suitable quick release (e.g. CONTEC EROQ.R Rear). The matching quick release is supplied with the hub. The standard installation width of the CONTEC EROQ cassette rear hub is 135 mm and it has a 6-hole brake disc mounting. The wheel has a robust Shimano HG freewheel body made of sturdy steel with a high-quality ball bearing. The frame offers fast interaction between the freewheel and the hub body. is formed by the CONTEC Zen 28 Disc rim. With an inner width of 25 mm, tires from 42 to 62 mm fit on the wheel. The 2.00 stainless steel spokes form a strong connection between these two main components. All CONTEC wheels are mounted in our wheel factory in Hoya/Lower Saxony (Germany) and perfectly centered using the latest technology mm Freewheel body HG Main color black Installation width 135.0 mm Usage range city / trekking Hub color black Spoke color black Rim color black Spoke material stainless steel Rear wheel mounting Brake system for disc brake, 6-hole Shifting system 8-speed, 9-speed, 10-speed, 11-speed Type/type Article Design hollow chamber For wheel yes Wheel size 28 "