The absolute lightest option in the new DURA-ACE wheel lineup, the C36 tubular for rim brakes is a KOM and QOM-crusher.Designed for the demands of professional racing, the new DURA-ACE C36 tubular rim brake wheel is a climber´s delight thanks to its low weight and quick acceleration. The 36 mm deep rim is optimized for wider tubulars thanks to its 28 mm external width.Features:- 36 Mm Height Full Carbon Rim- External Rim Width: 28 Mm- Direct Engagement- Compatible Only With Shimano Road 12-Speed Cassette SprocketsSpecifications:- Average weight: 684- Spokes_Straight pull: Yes- Brake type: Rim brake- Axle fixing method: Quick release- O.L.D. (mm): 130- Rear speeds: 12- Quick release skewer length (mm)_163: Yes- Quick release skewer length (mm)_168: Yes- Compatible spoke protector: CP-W124- Front/Rear: Rear- OPTBAL (2:1): Yes- Reflector_AS: CATEYE RR-550-WUW SW- Reflector_DIN: CATEYE RR-317-WUA SW- Reflector_JIS/CPSC: CATEYE RR-550-WUW SW- Rim_Height (mm): 36- Seal_FREEHUB body: Contact- Seal_Hub: Contact- Spokes_Bladed: Yes- Spokes_Butted: Yes- Spokes_Number: 21- Tire_Recommended size: 25-28 - 32-28- Tire_Type: Tubular- Wheel Size: 700C- Spline type_new HG spline(ROAD 12-speed): Yes- Model name: WH-R9200-C36-TU- Engagement type: Direct engagement- Rim_External width (mm): 28- Spokes_Diameter (mm): 2.0-1.6-2.0- Specification: R