Nature Boy Disc
It’s finally here, the disc brake version of our iconic singlespeed cross machine.
Like its cantilever brethren, the Nature Boy Disc carries all of the AC hallmarks that you’ve come to expect: beautiful lugged fork crown, custom dropouts, custom BB shell, signature head badge and E.D. coating. It has our proven race-inspired geometry, but since we’re big fans of riding cross bikes every day, we’ve built in plenty of room to fit large tires and even fenders.
We are particularly proud of our new singlespeed disc dropout. It solves our main frustration with dropouts of this style: where do you position the brake caliper for optimum performance? The answer was to develop a proprietary system where the tension screw is used to pull the caliper mount into the correct position. Just loosen everything up, use the tensioner to achieve desired chain slack and tighten it all back up. No more guesswork, just reliable braking performance.
For racing, cruising trails, gravel or daily commuting, disc brakes and a singlespeed setup provide unmatched control and reliability.
COMPLETE MSRP $1150 | FRAMESET MSRP $550
SPECS & GEO
- Headset + Cane Creek 10 series
- Stem + Salsa Guide, 1-1/8th threadless, 31.8 clamp
- Handlebar + Salsa Cowbell 3, 31.8
- Tape + Black
- Brake lever + Tektro RL340
- Brake + Hayes CX-Expert, 160mm rotors
- Crankset + FSA Vero 42T
- Bottom Bracket + 68x110mm steel cups, sealed bearings
- Seatpost + Kalloy 27.2
- Saddle + All-City Gonzo
- Freewheel + 17T 3/32
- Chain + KMC Z610
- Hubs + Surly Ultra New Disc 32 hole
- Rims + Alex Black Dragon 32 hole
- Tires + Clement MXP 700x33 Steel bead
Size | 46cm | 49cm | 52cm | 55cm | 58cm | 61cm |
---|---|---|---|---|---|---|
Head Tube Angle | 70.5 | 71 | 71.5 | 72 | 72.5 | 72.5 |
Seat Tube Angle) | 74 | 73.5 | 73 | 73 | 72.5 | 72.5 |
Top Tube Length) | 520 | 535 | 550 | 565 | 585 | 605 |
Seat Tube Length | 460 | 490 | 520 | 550 | 580 | 610 |
Chainstay Length | 430 | 435 | 435 | 435 | 435 | 435 |
Bottom Bracket Drop | 70 | 70 | 70 | 70 | 70 | 70 |
Fork Offset | 45 | 45 | 45 | 45 | 45 | 45 |
Total Fork Length | 395 | 395 | 395 | 395 | 395 | 395 |
Head Tube Length | 95 | 110 | 130 | 150 | 175 | 200 |
Standover | 756 | 778 | 802 | 827 | 853 | 880 |
Wheelbase | 1001 | 1013 | 1019 | 1030 | 1039 | 1059 |
Stack | 526.2 | 542.2 | 563 | 583.9 | 609.6 | 633.4 |
Reach | 369.1 | 374.4 | 377.9 | 386.5 | 392.8 | 405.3 |
Handlebar Width | 40 | 40 | 42 | 42 | 44 | 44 |
Stem Length | 80 | 90 | 100 | 110 | 110 | 120 |
Crank Arm Length | 170 | 170 | 175 | 175 | 175 | 175 |
- Frame + 612 Select ChroMoly steel. Double butted down, top, and seat tubes. Externally tapered, ovalized, and dimpled chain stays, tapered seat stays
- Fork + 4130 ChroMoly tapered fork blades, lugged crown and matching dropout. Straight steertube
- Rear spacing + 135mm
- Brake Compatibility + Disc only, 160mm max rotor
- Seatpost diameter + 27.2
- Steertube/Headset + 1-1/8" threadless, EC34 upper & lower, Crown race 30.0
- Bottom Bracket Shell + 68mm English
- Chainring clearance + 49 Tooth max
- Tire clearance + 700x38
- Extras + Fender Mounts, ED coated