From aluminum to carbon: Sram dips the Roam 50 wheels in carbon fiber

Aluminum was previously the material of choice for the Roam 50 wheelset on the rim. Now the trail wheels are rolling into the 2017 season on 29er carbon rims. The rims are a few millimetres wider in line with the trend, but the wheels are no lighter despite the carbon.

The size measures 29 inches, the number of spokes is 24, the crossing of the spokes is double, the spokes are butted with 1.8 and 2 millimetres and the rim measures a moderate 25 millimetres wide on the inside (previously 21 millimetres on the aluminium predecessor).

The weight is 1655 grams (previously 1641 grams for the predecessor), divided into 765 grams at the front and 890 grams at the rear. Sram has also fine-tuned the freewheel, so the pawls should engage much faster when activating the crank and the bike should therefore provide quick propulsion.

In order to keep up with the numerous axle standards, Sram presents the so-called Side Swap. End caps and axles can be changed in no time at all. It will also be easier for repairs: Sram calls the system Solo Spoke, in which only spokes of a single length are used in the wheelset, which is definitely repair and storage-friendly.

www.sram.com