WHAT IS THE MIN.D.?
- A high performance road bike frame using OPEN’s ultra-efficient tube shaping for power transfer, low weight & high strength
- Continuous seattube design for extreme comfort without gimmicks
- Tire clearance for modern road tires up to 32mm (since tire labelling is unreliable, always check tire clearance with the frame)
- Available in standard 2x and dedicated 1x version
- Classic, understated look in both shaping and color
Comfort is not about gimmicks, elastomers, electronic suspension or sub-atomic vibration damping graphene-infused nano-particles. It’s about finding ways to ride further, for longer, while enjoying it.
A comfortable fit geometry comes first. Our aim is sportive (we still want to go fast) but with a realistic saddle-to-handlebar drop and reach.
Secondly, bad roads are one of the worst comfort killers, whether through cracks and potholes or simply through vibrations. Making your tires a tad larger is the most effective comfort boost while also improving rolling resistance and grip.
Finally, we create comfort through the frame shape and layup, in particular the seattube/seatmast and the seatstays.
The continuous seattube design is extremely small at 25mm diameter (30mm is normally the minimum if you want to fit in a 27.2mm seatpost). This change adds astonishing comfort to the frame. Removing the seatpost/seattube overlap at the toptube also means the seattube compliance continues uninterrupted.
Our own minimalist seattube top clamp is nearly invisible yet easily adjustable by 0-15mm and slip-proof. We even have our special MOCT saddle clamp (Measure Once Cut Twice) which is adjustable from 15-35mm. This also makes it much easier to resell your frame later on, although you probably never want to lose your MIN.D.
And don’t worry about traveling with the seatmast. We recommend the Scicon Aerocomfort 3.0 which let’s you travel without even removing the saddle (up to 80cm saddle height) or by removing the saddle+top clamp (up to 85cm saddle height). You don’t even have to remove the handlebars or twist them; all you do is remove the wheels and pack the bike. This bags fits tons of gear, rolls well and offers great protection.
It may sound weird that we consider this one of the most important features of the MIN.D. But as Dieter Rams said: “As little design as possible” (we highly recommend the documentary and the book). This is a pure road bike, and nothing more. Simply because it doesn’t have to be anything else.
NEW ROAD HANDLING
We’ve done a lot of work on steering geometry in the past five years. Some of you in the Basel area may have seen us ride around on weird concoctions with adjustable headtube angles and chainstay lengths.
The MIN.D, takes everything we’ve learned from our road bike test mule and our gravel bike on/off-road geometry experiments, putting it back into a pure road bike geometry
The OPEN U-Turn was the first fork truly optimized for flatmount brakes by deleting the standard adaptor to switch between 140mm and 160mm disc rotors (you should always use 160mm rotors anyway for added safety & control at almost no extra weight). The adaptor is a feature without a benefit at the expense of weight, stiffness and complexity.
The R-Turn uses the same Smartmount direct-mount design with thru-bolts without adaptors, just like the rear brake. Together with new shaping and a new layup optimized for road, the R-Turn is the lightest disc brake road fork available.
Note: For SRAM or Shimano, remove the adaptor and use bolts recommended for a 30mm “rear chainstay thickness”. For Campagnolo, use a “140 mm REAR” disc caliper with bolts “for 30-34 mm rear mount”.
Vertically thin chainstays and seatstays provide compliance, while their lateral width and layup ensure rock-solid propulsion. Truly the best of both worlds.
MINIMALIST TOP CLAMP
OPEN-custom seattube top clamp with micro-wedge is barely visible, just the two countersunk set screws reveal the adjustment mechanism.
RITCHEY RAIL CLAMP
Clean, simple, hassle-free, that’s why the Ritchey system is so popular. The MIN.D. comes standard with the side plates for round 7mm and 7×9.6mm oval rails.
The MIN.D, internal routing is designed for electronic groupsets from SRAM, Shimano and Campagnolo.
Lock bolt secures the hanger in the frame using the same threads that secure the thru axle on the other side. Simpler, lighter & optimized for the stiffest thru-axle: Syntace X-12.
Flatmount brake calipers attach directly onto the fork & frame, positioned for 160mm discs. No front or rear adaptors/spacers required.
|1||Estimates; for accuracy use stack/reach of your current gravel/road bike or a fit session.|
|2||Maximum when using 5mm spacer, giving 10mm safety margin on top (30mm margin with MOCT seattube top clamp). Assuming 40mm rail-to-saddle deck (40-45mm is standard for most saddles).|
|3||Standover to the top of the toptube directly above the BB (varies with tire size).|
|4||Normalized dimensions to compare to frames with standard (non-zero-offset) seattubes.|
|5||The length of seatmast needed to install a Shimano Di2 Battery results in this minimum achievable saddle height (including safety margin).|