The not-so-minor details
Bontrager Rhythm Pro TLR Disc wheels
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Mother of god, these are a nice set of wheels.
Well. Erm, that's a tough one.
One of two all-new carbon mountain bike wheels in the Bontrager line-up, the Rhythm Pro TLR carbon 27.5″ wheels have just found their way into the dropouts of our long-term test Giant Trance Advanced SX all-mountain machine. And all of a sudden our bike just got a whole lot sexier.
Built from Trek’s OCLV carbon, these are a tasty set of hoops. While the 1670g weight for the pair won’t necessarily sizzle your sausage, these wheels are built for bombing, not mincing around the trails, so weight alone isn’t the driving design consideration. Our initial impressions of these wheels’ stiffness after just the one ride is very positive; they come out the box with a whopping amount of spoke tension which, when combined with the stiffness of the carbon rim, makes for a rock-solid set of rolling gear.
As with other Bontrager rims, converting to tubeless is incredibly clean and simple; Bontrager rim strips snap into place, providing a rock solid seal that won’t lose air over time like some tubeless tapes can. With an internal width of 22.9mm, they’re wide enough to offer good support for 2.3″+ tyres (though not as wide as some other similar offerings, such as Enve’s AM or Specialized’s Traverse rims). To complete the Bontrager setup, we’ve fitted a set of chunky XR4 tyres in a 2.35″ width and we think they’ll totally dominate in loose conditions.
With the tight tubeless seal and obviously robust nature of the rim construction, we’ve already begun playing with lower tyre pressures than usual, dropping down to around 22psi in the rear and even lower up front. Unlike alloy wheels, you don’t feel compelled to wince every time the rim bottoms out against the tyre – they just feel tough!
One of the other highlights of these wheels is the new Rapid Drive freebub, which has exceptionally quick pick-up, thanks to 54 engagement points. Of course, they sound bloody great too. We’ll be running these wheels for the next few months and we’re looking forward to seeing just how hard they can go.