Choosing the correct wheelset is maybe the most important criteria when customizing our mountain bikes, and its selection plays a critical role in how our bikes will ride. We've had really good success with ENVE Composites as its carbon hoops and build processes yield amazing consistency, light weight, and transformative ride qualities. Its M630 Industry Nine Hydra 29in Boost Wheelset continues the tradition with its light, stiff, and strong carbon hoops, laced up to the all-new I9's Hydra hubset. The M630 rims are lust-worthy indeed, thanks to the lack of weight and moderate width that accommodates the current crop of 2. 3-to-2. 5-inch trail tires, and when paired with the I9 hubs, you can count on them for speedy engagement for instantaneous power. Hydra hubs offer a whopping 690-points of engagement for just 0. 52 degrees of rotation before engagement. This means you get on the gas instantly when stepping on the pedals. The M630 is damn-near ideal for contemporary trail bikes and their mid-sized tire clearance. The wheels shed close to 40 grams of rim weight versus ENVE's HV equivalent, all the while offering 4mm greater internal width. We're sure the secret to being lighter, wider, and more durable is safely tucked away on an ENVE engineer's hard drive, but we have no doubt that the company burned the midnight oil to bring this wheel to market. The redesigned, wider hookless bead is perhaps the biggest takeaway, as its increased durability and tire-saving design are worth the upgrade over the outgoing M60 Forty HV. Running higher volume tires makes sense as soon as you try it, and the increased rim width on offer here is just more of a good thing. Every corner is under attack, and the confidence of more tread on the trail has you off the brakes and on the gas. The 30mm internal width is perfectly situated to get the most out of 2. 3 to 2. 5in tires, and the amazing balance of weight, stiffness, and durability is without equal in the carbon trail wheel categ...