Gravaa x Reserve 40|44 GR – Specification
Gravaa Hub versions and tire limits
| Terrain | Gravel |
| Tire widths | Accepts between 35-45mm |
| Pressure relief valve | Orange 5.5 bar – in-built safety feature in case of excess pressure |
| Tubeless ready | Yes, in combination with included sealant filters only |
Tire pressure limits for Gravaa Gravel Hub ( with inner tube, example rider weight, 75kg)
| Tire width [mm] | Tire size | Min pressure [bar] |
Max pressure [bar] |
Default safe pressure [bar] |
| 35 | 28 x 1,4” | 700 x 35C (35-622 ETRTO) | 2,0 | 5,0 | 3,5 |
| 36 | 28 x 1,4” | 700 x 36C (36-622 ETRTO) | 1.9 | 5.0 | 3.5 |
| 37 | 28 x 1,45” | 700 x 37C (37-622 ETRTO) | 1.8 | 5.0 | 3.4 |
| 38 | 28 x 1,5” | 700 x 38C (38-622 ETRTO) | 1.7 | 4.8 | 3.3 |
| 39 | 28 x 1,55” | 700 x 39C (39-622 ETRTO) | 1.6 | 4.6 | 3.1 |
| 40 | 28 x 1,55” | 700 x 40C (40-622 ETRTO) | 1.5 | 4.4 | 3.0 |
| 41 | 28 x 1,6” | 700 x 41C (41-622 ETRTO) | 1.4 | 4.2 | 2.8 |
| 42 | 28 x 1,65” | 700 x 42C (42-622 ETRTO) | 1.3 | 4.0 | 2.7 |
| 43 | 28 x 1,7” | 700 x 43C (43-622 ETRTO) | 1.2 | 3.8 | 2.5 |
| 44 | 28 x 1,75” | 700 x 44C (44-622 ETRTO) | 1.2 | 3.6 | 2.4 |
| 45 | 28 x 1,75” | 700 x 45C (45-622 ETRTO) | 1.2 | 3.4 | 2.3 |
Specifications
Gravaa x Reserve 40|44 GR Wheelset
| Ideal for | Gravel |
| Wheel size | 700c (29"/622mm) |
| Brake type | Disc brake only, Gravaa 5-bolt rotors by Galfer included with wheelset |
| Weight | 1960 g |
| Rim type | Hooked, TLR |
| Rim materials | Carbon |
| Rim height | 40 | 44 (front/rear) |
| Rim inner width | 27.4 | 27.0 (front/rear) |
| Offset rear | 2.7mm |
| Tire types | Clincher |
| Tubeless ready | Yes, in combination with included sealant filters only |
| Hub type | Non-boost (100mm front, 142mm rear) |
| Max. system weigh | 110kg (rider + bike) |
| ANT+ | TPMS |
| Bluetooth | Yes |
| Disc brake rotor front | 140mm disc, 160mm disc, 180mm disc |
| Disc brake rotor rear | 140mm disc, 160mm disc, 180mm disc |
| Number of spokes | 24 |
| Spokes types | DT Swiss Aerocomp Spoke Straight Pull, DT Swiss Aerolite Spoke Straight Pull |
| Spokes nipple type | DT Swiss Pro Lock 2.0 mm (aluminum, external nipples) |
| Freehub system | DT Swiss Ratchet System (36 teeth) |
| Freehub body | Shimano Road (HG), SRAM XDR, Campagnolo N3W, Shimano Micro Spline, SRAM XD |
| Wireless shifter (controls) | Gravaa Sprint shifter (included) |
| Ingress protection class | IP55 |