Hardtail Boost Mtn Bikes
Our Boost hardtail frames run 650b+ or 29er/29+. We have two models from two different factories in Asia. The one you see below with elevated drive-side chainstay is made to run 650b+/29er/29+ with adjustable rear thru axle placement position insert. The other frame we have has elevated chainstays on both sides and comes in two different frame styles a 650b+ and also a 29er/29+. This frame is especially good for Di2 with special battery holder insert in the BB and Di2 compatible cable runs. These frames run the BB92 press fit bottom bracket. Both frames in 17.5" size weigh just under 1500g. Rear 12x148 thru-axle included in weight and with frame, and front rigid fork weighs 740g with uncut steerer tube including 15x110 thru-axle. Tapered headtube and 31.6mm seatpost. Normal Q-Factor 177mm.
Above is one of our Boost bikes built up with our carbon hookless bead 50mm wide 29+ rims on Onyx hubs with the Vittoria Bamboloni 3.0" tires and XTR Di2. It weighs exactly 22.8lbs sans pedals and we could get it down to 21.5lbs with Industry9 hubs and a RaceFace NextSL carbon crankset, but would be tough to forego the best hubs in the world. The super stiff Hope crank is cnc'd from one big hunk of alloy and is amazing.
Above is another configuration we like with our LaMere carbon 650b+ wheels, 38mm rear and 50mm front, with Sram X0 hubs; Schwalbe Rocket Ron rear and Nobby Nic front, both 3.0" size; Lauf TR Boost fork; XT 1x11 drivetrain with XT brakes and Hope alloy cnc'd cranks. Saddle is Ti rail Volt, RaceFace NextSL carbon seatpost, alloy stem, and carbon bars. The bike weighs 22.2lbs.
Above is a Boost 29+ build with 29+ LaMere carbon 50mm external width rims, with Onyx hubs and the Manitou 29+ fork and Shimano Di2 XTR, Vittoria Bomboloni 29x3.0" tires, XTR cranks....25.5lbs.