Strong braking and the ability to run tubeless tyres was confidence-boosting. I’d be happy to race and train on these all year round.
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Handbuilt in Oregon USA, Rolf claims the Vigor Alpha is the fastest alloy wheelset on the market.
The 33mm-deep Delta aero rim has a chunky width of 22mm, which is said to improve the airflow.
Add to this a low spoke count (14 up front, 16 at the back), recessed nipples and a weight of 1,450g (635g/815g), the Alpha is a very fast wheelset.
Acceleration is brisk. Having the left and right spokes meet close together at the rim allows for high spoke tension. With a wide front hub and huge rear non-driveside flange, Rolf has produced a very stiff wheel.
Ceramic bearings come as standard and after 400-odd miles are still silky smooth and without a hint of play. The wheels handle impeccably; there were no scary moments in crosswinds and the extra rim width was welcome when cornering and on rough road surfaces.
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