DT Swiss Ratchet System (36 teeth)
100 x 12 mm axle
Gravel riding, Competition road racing
142 x 12mm axle
Clincher – Tubeless ready
Average power consumption during inflation
2 – 4.5 W at 25 km/h, between 1 and 6 bar (per wheel)
Average inflation rate
Tyre used for specs
700x30c tyre (30-622)
Inflation on the fly
Deflation on the fly
During standstill, While riding
Average deflation rate
Inflation rate related to riding speed?
Deflation rate related to riding speed?
Average power consumption during deflation
40 | 44 mm
Rim inner width
25.5 | 25 mm
Disc brake only
SRAM XDR, Campagnolo N3W, Shimano Microspline
Disc brake rotor front
140 mm disc, 160 mm disc, 180 mm disc
Disc brake rotor rear
140mm disc, 160mm disc, 180 mm disc
Non-boost (100 mm front, 142 mm rear)
Max. system weight
110 kg (rider + bike)
Number of spokes
Spoke nipple type
DT Swiss Pro Lock 2.0 mm (aluminum)
DT Swiss Aerolite / Aero Comp
Tyre pressure operating range
2.0 – 7.0 bar
Safety valve (color)
red (5.5 bar)
Can handle all pavement!
The GRAVAA R-40|44 is the result of a partnership between top-quality brands GRAVAA, Reserve Wheels and DT Swiss. The wheelset consists of Reserve 40|44 rims and are equipped with GRAVAA’s KAPS technology and DT Swiss’ hub parts. Altogether, this set will make you the fastest rider on every terrain. This wheelset is made for competition road and gravel racing, and the 25.5 | 25 mm inner width aero rims allow the use of various tyre widths.
The lightweight wheels compose of carbon rims and advanced hubs, in which a miniature high-pressure pump is stored. This pump is driven by the rotation of your wheels: by you. Via an integrated clutch unit and electro-pneumatic wireless control system the pump gets only active on demand. The wheels are fully compatible with standard bikes with disc brakes. You manage your tyre pressure wireless from your handlebars. Meanwhile, all relevant information can be displayed on your bike computer or smartphone.