Bike wheels are one of the most important parts of your bike for safe, controlled, reliable riding. The rule of thumb for wheels is 1) Light 2) Strong 3) Cheap: Pick any two. Width is an important factor for supporting your tire’s side walls, especially if you’re a heavier rider and/or run single ply tires. For Enduro, All Mounatin, and Downhill riding shoot for an outside rim width of 30-35mm. We like to run a 35mm in the rear and a 30mm in the front since the rear wheel has to withstand more abuse and the front wheel needs to flex a little to maximize grip. As for hubs, the rule is 1) Reliable 2) High Points of Engagement and 3) Cheap: Pick two. Reliability depends somewhat on how much you abuse the hub with heavy, aggressive riding. If you do any technical climbing or free riding a high engagement hub with greater than 40 points of engagement is good rule of thumb. With about 85 point of engagement, the NovaTec hubs roll smooth, and give you almost instant pedal engagement.