These are the second-narrowest wheels in the Duroc quintet, with a well-balanced ride, excellent tyre security and comprehensive spares package. The 31mm width works great with 2.5 to 2.6in tyres, and the extra ‘lock’ of the humped rim means you can run narrower 2.8 to 3.0in rubber without any worry of burping. SUNringle supply the STR rims pre-taped, with valves and sealant in the box. Wheelsmith double-butted spokes give a good balance of float, precision and power delivery, and you get brass nipples for easy adjustment. Our year-old set of Duroc 40s is ready for new bearings and the freehub is a bit scarred, but otherwise they’re still enjoyably lively daily drivers. Long-term multi-bike versatility is boosted by the inclusion of a full set of axle adapters and an XD freehub body.
Weight 880g+980g= 1,860g
Width 31mm/34mm
Freehub lag 10°
Sizes 650b, 29in
Price $810