|I'm tempted to tell you that a wider rim is always better, but it isn't quite that simple as tire consideration needs to come into play when you get into these new mega-wide rims like Ibis' carbon 741 (35mm internal) or Specialized's carbon Fattie SL (30mm internal) and aluminum Fattie (29mm internal). How so? If you take a tire with a square profile, such as Maxxis' High Roller, and put it on an extremely wide rim, it will exaggerate that square profile to the point where it won't work as intended. That said, your DHFs have a rounder profile to them than the High Roller so they'll will work well with whatever wide rim you decide to go with, and I was quite happy with that exact setup when I tested the Ibis 741 wheelset back in June. Have these wide rims gone too far? Having spent time on them, I don't believe so. I'm confident that we'll see more and more wide rims on the market within the next year or two, simply because the benefits can't be ignored. More traction, better reliability through less burping and more tire support, and some riders can even get away with a lighter, less aggressive tire due to how a wide rim can add a few millimeters of width to the rubber. What about the added weight of a wider rim? Most of these wide rims aren't appreciably heavier than a standard option (Ibis says the 741 rim weighs 475 grams), so you can forget about that.|
I'd suggest going as wide as possible. If you decide to go with a complete wheelset, the carbon 741s retail for $1,299 USD, Specialized's carbon Fattie SL's go for $1,400 USD, and their aluminum Fatties for $600 USD. The latter would make a great choice if you're not looking to drop a big chunk of cash. And while Ibis' offerings only come in a pre-built wheelset, you can pick up a similar rim from Derby with a 34mm internal width for $329 USD. - Mike Levy
|I assume that you own the 26-inch-wheel version of the Transition Covert. Pinkbike's Mike Kazimer reviewed that bike and noted that while the Covert performed well in almost every trail situation, it wasn't as good as he expected it to be on the downhills. Going from a 67-degree angle, to a 65 degree angle will make the steering feel heavy while pedaling on flats and uphills, but the benefits that the added stability and slower steering will give you on the descents may be a worthy tradeoff. You note, however, that you already like the way it descends, so using a two-degree headset cup to slacken the head angle may create a larger change in your Covert's handling than you desire. Works Components also makes 1.5-degree adapter cups, which may be a better option if you are using your Covert as a do-it-all machine. The bottom line is that it's only money. If you don't like the two-degree cups, you can always buy another set and scale your head angle back a bit. - RC|
When Pinkbike tested the Transition Covert, we thought that it needed a little help on the downs. Using one or a two-degree headset cups to slacken the head angle could do the trick.
|Race Face's SixC carbon cranks are an impressive feat of engineering, and they held up to everything I threw at them when I tested them earlier this year. However, if I was building up a dirt jump or slopestyle rig, they wouldn't be my first choice. Why is that? Well, both dirt jumping and slopestyle riding typically involve crashing, or at least bailing, multiple times during a session, and it's often the bike that ends up taking the brunt of the impact. As strong as the SixC cranks are, carbon doesn't handle being scratched, scored, or gouged as well as aluminum, and the chances of that happening are even greater on a dirt jump bike than on a DH or all-mountain rig. A sturdy set of aluminum cranks would be a better option, and Shimano's Saint cranks would certainly be a good choice, or for a more budget friendly build I'd go with Shimano's Zee cranks over the SLX you mentioned due to their steel pedal inserts that can help prevent stripping the threads out on a hard landing. Race Face's Atlas cranks would also be another good pick, but no matter which aluminum crankset you choose to go with they'll likely be much less expensive than the SixC's $500 asking price. - Mike Kazimer|
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