SpecializedEnduro 650B Details. • Intended use: all-mountain / enduro race. • Wheel size: 27.5''. • Rear wheel travel: 165mm. • FACT IS-X 11m carbon front triangle, M5 aluminum rear Theextension (yoke) is all that is needed for the 27.5-inch Enduro and is said to cost $20 USD, while the 29er needs the extension and link, and will sell for $50 USD. Updated Parts and ExploreSynthesis Alloy for E-MTB, enduro, gravel, and XC disciplines. 16 products. Synthesis Enduro I9 Alloy Front Wheel. $349.99. Synthesis Enduro I9 Alloy Rear Wheel. $549.99. Synthesis Enduro Alloy Front Wheel. $239.99. Synthesis Enduro Alloy RunnerUp Front Tire: Michelin Wild Enduro Tire. Michelin designed the Wild Enduro Tire ($70) specifically for the needs of enduro riders, 26, 27.5, and 29 inches. The primary sizes are 27.5 Bothof these bikes are available in mullet or 29er versions so I think its important to talk about that a little. Having the 27.5 rear wheel on an Enduro bike in my opinion is not necessary. And in fact you can argue that the rear wheel rollover is not quite as good with a mullet so in a straight line, the full 29er is going to be faster. Its the biggest debate in Downhill right now. 29 inch wheels or 27.5 inch wheels. The introduction of 29ers has caused huge controversy with only a handful Thenumber of spokes is just one factor for a wheel. For example, DT Swiss makes cross country, all mountain, enduro, and hybrid/ebike wheels that are all 28 spoke. They are rated anywhere from ASTM 3 with a 110KG weight limit, to ASTM 4 with a 150KG weight limit. But if you want their highest rated downhill ASTM 5 wheels, they only come Themountain bike range comprises the PRO cross-country hardtail in 29er and 27.5-inch wheeled versions and the Live Wire hardcore hardtail that you can set up with 29 x 2.5in tyres or 27.5 x 3.0s. Complete bikes start at US$4,950. In the past Rachael has written for publications such as, Enduro Mountain Bike Magazine, Mountain Biking UK OQe5.