R2BIKE wheelset 28" Disc RR GRV | Extralite Road Straightpull Center Lock hubs | R2BIKE Carbon rims
Application: Road bike RR, Gravel GRV
Road cyclists and gravel riders are always looking for the best compromise between weight, aerodynamics and stiffness. The combination of R2BIKE carbon rims and the lightweight Extralite hubs should therefore always be on the shortlist. The balanced component mix guarantees you high reliability and a long service life.
Hubs
It has long been known that the Italians around Extralite create small CNC works of art. Their extravagant design stands out from the crowd and is an eye-catcher on any bike.
They have once again outdone themselves with the next evolutionary stage of the Cyberhubs. The one-piece hub body is CNC-milled from high-strength 7075TX aluminum at great expense. This rotates around a stable 17 mm aluminum axle with double-sealed deep groove ball bearings. The axial play can also be finely adjusted in future using the micro-tuner.
The spoke mounts have been changed slightly. These are now closer to the hub body, but still use the straight-pull version to minimize susceptibility to punctures. The holes have been enlarged and rounded to a diameter of 2.8 mm and can accommodate conventional stainless steel spokes as well as carbon or even textile fiber versions. This means you are already equipped for the future. In addition, the coordinated geometry of the hub flange ensures an optimum spoke angle and can also withstand high spoke tensions. This guarantees you a very stiff and durable wheel.
A pawl freewheel provides propulsion. Two pawls engage in a titanium ring with 32 ratchets. This reduces the free travel and also reduces wear.
Rims
Perfectly finished, light and yet sufficiently stiff are the most important specifications of the R2BIKE rims. Depending on the rim height, you can conquer summits or make good speed on the flat. And they have not skimped on safety either, as they are approved for a system weight of 90 kg.
How did the developers achieve this? First and foremost, of course, the choice of material plays an important role. Not all carbon is the same. The decision was made to use the high-quality T800 fibers from Toray Industries, one of the world's leading suppliers of this material. These have incredible strength, are very stiff and yet are among the lightest on the market. However, high-end material alone does not make a high-quality product. It also depends on the manufacturing process, which is where the rims score points. Their sandwich construction combines different carbon layers. This enables specific, punctual reinforcements and therefore greater overall stability of the rim without increasing the weight.In addition, a carbon strip was used in the spoke hole area to prevent the nipples from tearing out and to allow higher spoke tension.
The unique, flawless look in an elegant matt finish is also achieved using a special resin. This allows the carbon layers to harden perfectly, prevents bubbles from forming and ensures a resistant surface. This means that even stone chips cannot harm it.
The rim flank has a classic hook for secure tire guidance. This prevents the tire from bouncing even at high air pressures and you always have your bike under control. Of course, the rims can also be ridden tubeless.
They also have an asymmetrical profile, which allows a more even spoke angle. This optimization has a number of advantages. The tension on both sides can be better aligned, which is beneficial to the durability of the spokes and the wheel as a whole. The normally direction-dependent lateral stiffness is also adjusted, making the wheel more stable in itself.
Wheel construction at R2-Bike
Our wheels are assembled entirely by hand by our wheel builders. During the entire assembly process, great importance is attached to ensuring that not only the concentricity is correct, but also that the spoke tension is as even as possible. This special care allows us to give the first owner a lifetime guarantee against spoke breakage, as long as it was not caused by force.
The following services are also included for first-time buyers:
You will receive a universal wheel bag for all common sizes.
You will receive a spare spoke with nipple in all required spoke lengths so that you can repair the wheel quickly after an accident.
Within 2 years of purchase you will receive a free initial inspection of the wheel, where the resulting work is completely free of charge. Only shipping costs apply.
You get a crash replacement promise: If your wheel is damaged due to force majeure within 2 years of purchase, we will rebuild it once. We grant a 100% discount on all labor costs and only charge for the material.
Technical data
Area of use: Area of use: Road bike RR, Gravel GRV
Wheel size: 28" (ETRTO: 622 x 24)
Rim type: clincher (clincher and folding tires)
Brake type: Disc brake
Brake disc mount: Center Lock
Weights:
1164g (lightest version: 12x100 mm + 12x142 mm, 35, Sapim CX-Ray)
1318g (heaviest version: 12x100 mm + 12x142 mm, 45, Sapim Race)
Note:
Deviations in weight are possible due to manufacturing variations in all components. The specifications are generally calculated without rim tape, valves and decals/rim stickers.
The specified delivery time refers to the usual time required to assemble the wheelset and does not reflect the availability of the individual parts.
Scope of delivery:
1x complete wheelset, fully assembled (hubs, rims, spokes and nipples)
1x wheel bag
4x spare spokes including nipples
1x assembly certificate
2x hologram stickers
SCHWALBE Tire G-One RX Pro 40 - 622 | Race Pro V-Guard ADDIX Race TLR | Transparent Skinavailable from stock
