Velonews -- “Ultimately, Open has created what the gravel category should aspire to: exceptional comfort and unparalleled versatility.”
Demo Bikes - Example Build Kits
Forget “100% hi-modulus aero-space carbon”. It’s not about high- or low-modulus, it’s about the right carbon in the right spot (or TRCinTRS™ as we mockingly call it).
Fact: stiffer carbon is more brittle. So it's great for stiffness (on the sides of the downtube) but bad for impact loads (for example around the headtube).
Hence the best lay-up is a blend. We strategically place the ultra-high modulus (very stiff) carbon where we can, and tougher grades of carbon where we must. That’s how our frames are both light and durable.
MONSTER TIRES, NIMBLE RIDE
The OPEN U.P. inspired a generation of gravel bikes that could fit up to 2.1” tires. The WI.DE. (Winding Detours) can run even bigger tires while still fitting road cranks!
The monster tires help you conquer the most extreme terrain, the performance geometry & narrow Q-factor keep you efficient while the steering geometry keeps you nimble.
--With 650b gravel or mountain bike tires up to 2.4”(61mm), rutted singletrack, slippery roots and loose rocks are no match
--With 700c gravel tires up to 46mm, even the toughest gravel roads are tackled at lightning speed
--With 700c road tires (we recommend 35-40mm wide), you have the most comfortable road bike ever invented
The U.P. fits mountain bike and gravel tires up to 2.1” (54mm) in 650b. It also fits 700c gravel, cross and road tires from 28-40mm wide (exact tire sizes depend on manufacturing tolerances and rim width, so always check and make sure you have 6mm clearance between tire and frame).
More importantly, and more difficult to achieve, the U.P. handles well in all these configurations, as customers, media and award judges confirm time and again. So whether you ride it with road or mountainbike tires, on pavement or off-road, you always have nimble, responsive and confidence-inspiring handling.
Chainring(s), frame and tire all fight for space just behind the bottom bracket. Mountain (and some gravel) bikes solve this with a wider crank, but that hurts your pedal stance (Q-factor) and thus your pedaling efficiency.
Instead we drop the right chainstay to move it out of this crowded area, allowing it to be wider and therefore stiffer (twice the width will give you eight times the stiffness!) -- Probably the most copied feature of the original U.P., but still few fully understand why and how to optimize this.
SRAM Eagle XX1 AXS
SRAM Force AXS
SRAM Force AXS, Rotors 160mm front & rear
SRAM Force AXS Carbon, 170mm (S), 172.5mm (M), 175mm (L & XL)
SRAM DUB BB386
SRAM CS-1275, 10-50T
Cane Creek 40
ENVE Road, 80 (S)/90 (M)/100 (L)/110 (XL)mm
ENVE SES AR Road, 40 (S)/42 (M)/44cm (L&XL)
ENVE 0-offset, 27,2, 300mm
DT Swiss GR 1600 Spline , 700c or 650b
Schwalbe G-ONE Allround 45mm (700c) or 2.25” (650b)
fi'zi:k Antares R7
Fizik Tempo Bondcush soft, black