This is a very different OPEN yet it answers the same question: What do we want to ride? While we love pushing the envelope, we also love the classic bike aesthetic. In the MIN.D. both come together. The joy of cycling starts even before the first pedal stroke, as you collect your MIN.D., feel its lightness, admire the sleek tube profiles, see the shimmering midnight blue, smile at the splash of color from the 4 OPEN logo colors fading into each other on the inside of the fork and chainstays. Once on the bike, a strange combination of performance and comfort becomes apparent. Every gram of material has a function. Beyond it is nothing, other than the endless draw of roads unknown. This is the MIN.D. (MINimal Design); it exists because it’s the road bike we wanted to ride.
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
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.
CONTINUOUS SEATTUBE
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.
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
FRAME SPECIFICATIONS
- Frame-only size M, ±3% 870g (painted, uncut seatmast, w/o metal parts)
- Fork-only weight, ±3% 335g (uncut steerer)
- Sizes S/M/L/XL Stock colors Midnight blue with 4-color fade,
- RTP (Ready-To-Paint for custom painting (inspiration gallery, see here). TOUCH-UP PAINT for stock colors can be found here.
- RTP (Ready-to-paint) A clearcoat is not needed for UV protection but recommended to protect against scratches and wear. Some customers leave the frame bare.
- BB standard BB386EVO pressfit 86.5x46mm BB shell
- Recommended groupsets Any Shimano, SRAM & Campagnolo 1x Any SRAM eTap For Shimano 2x mechanical, please contact us For Shimano Di2, the minimum achievable saddle height (due to the Di2 battery fit inside the seatmast) is listed in the geometry table below (please note the seatmast inside diameter reduces above the toptube, so you need enough seatmast length to fit the Di2 battery. Check in the frame before cutting the seatmast)
- Front derailleur mount Standard version with fixed, riveted FD mount and dedicated 1x version without FD mount
- Rear thru-axle 142x12mm superlight Carbon-Ti X-12
- Front thru-axle 100x12mm superlight Carbon-Ti X-12 Front disc rotor size 160mm only
- Front brake caliper mount Smartmount 160 system attaches flatmount caliper, without adaptor, for 160mm rotors
- Front brake bolts SRAM 2x 37mm "REAR” brake bolts for 30mm “chainstay” (SRAM part# 00.5318.005.008)
- Front brake bolts Shimano 2x 43.2mm “REAR” brake bolts for 30mm “chainstay” (Shimano part# Y8N208030)
- Front brake set-up Campagnolo “140mm” (rear) caliper + 160mm rotor, no adaptors, 2x 39mm "screws for 30-34 mm rear mount thickness” (Campagnolo part# AC18-DBSC39) Rear disc rotor size 160mm only Rear brake caliper mount Smartmount 160 system attaches flatmount caliper, without adaptor, for 160mm rotors
- Rear brake bolts SRAM 1x 27mm (SRAM part# 00.5318.005.004), 1x 32mm (SRAM part# 00.5318.005.006)
- Rear brake bolts Shimano 1x 33.2mm (part# Y8N208010), 1x 38.2mm (part# Y8N208020)
- Rear brake set-up Campagnolo “140mm” (rear) caliper +160mm rotor, no adaptors, 1x 29mm “screw for 20-24 mm rear mount thickness” (part# AC18-DBSC29), 1x 34mm “screws for 25-29 mm rear mount thickness" (part# AC18-DBSC34)
- MultiStop internal system Di2, eTap, EPS, 1x mechanical (all groups)
- Headset Cane Creek Integrated IS42/28.6 | OPEN-custom Integrated IS47/38 (complete set part# CAA2011K. To purchase, go here.)
- Seatpost Integrated mast 25mm BB to saddle (to travel with the integrated mast, we recommend the Scicon Aerocomfort 3.0)
- Seattube top clamp OPEN-custom saddle top clamp with micro-wedge for 25mm seat mast with 15mm adjustment (MOCT top clamp with 15-35mm adjustment available separately)
- Rail clamp Ritchey rail clamp with side plates for round 7x7 and oval 7x9.6mm rails included
- Indoor trainer compatibility Detailed information here Installation information Brake hose installation Torque specs & BB installation Seatmast cutting & installation instructions Seatmast installation video
- Max. weight (total rider+luggage) 120kg / 264 lbs (EN/ISO/internal test standard)
- Included with frameset: Headset, Seattube top clamp, Rail clamp, Thru-axles, 2 RD hangers, 2 MultiStops (Di2, eTap), cable exit stop, noise-reduction foam sleeves, bottle cage bolts, manual
Other Features
R-TURN
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”.
WIRE-STAYS
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 7x9.6mm oval rails.
INTERNAL ROUTING
The MIN.D, internal routing is designed for electronic groupsets from SRAM, Shimano and Campagnolo.
THRUTHREAD DROPOUTS
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.
SMART-MOUNT 160
Flatmount brake calipers attach directly onto the fork & frame, positioned for 160mm discs. No front or rear adaptors/spacers required.
Picture of complete Bike just for showing purpose.
