Binary SuperB 275 titanium frame diagonal profile.
Binary SuperB 275 titanium frame close up of bottom bracket area.
Binary SuperB 275 titanium frame close up of junctions along seat tube.
Binary Bicycles titanium SuperB 275 close up of bottom bracket area with rainbow PVD coating

SuperB 275

The SuperB 275 is not just an XC on smaller wheels.  It is a complete design aimed at smaller and lighter riders, or simply someone who wants to utilize the smaller 27.5 wheel size.  It is the purest racer, not utilizing plus size tires and optimizing the short 100mm travel suspension forks, or 490 A/C rigid.
 
The SuperB 275 is the lightest of the group, using smaller frame tube sizes and compact design.  The X-Small through Medium frame sizes have a rider weight limit of 175 pounds, with no limit on the size Large and X-Large.
 
The SuperB 275 has proven itself to be a podium machine in the highly competitive NICA race series, with race wins and Top 5 season finishes since it appeared.  If you want the lightest and quickest bike for XC racing, or just plain fun, this is it. 
 
The SuperB 275 can run 27.5 (650B) tires up to 2.4, and uses 100mm suspension or 490 A/C rigid forks. 

Standard Frame Features

  • Construction – Light and beautifully crafted titanium
  • Axle Spacing – 12mm x 148mm boost; (axle included)
  • Dropouts – Sliding Paragon style
  • Headtube – Tapered
  • Bottom Bracket – Threaded 73mm BSA
  • Seatpost – 31.6mm; (35mm clamp included); internal dropper compatible
  • Bottle Mounts – 2-boss on top of downtube, 2-boss on seat post
  • Wheels/Tires – Fits 27.5″ up to 2.4 tires
  • Forks – Geometry supports 27.5 100mm suspension or 490mm A/C rigid
  • Versatile design works for XC or trail

Geometry numbers in millimeters.  Dimensions are using a 27.5″ 100mm fork sagged 8mm and 27.5 x 2.4 wheels and tires.
Standover measured from midpoint between seat tube and head tube.

XS

S

M

L

XL

TT Effective Length

572

590

606

635

650

Seat Tube Length

395

415

465

508

535

Seat Tube Angle

74

74

74

74.5

74.5

Head Tube Length

100

110

110

120

120

Head Tube Angle

68

68

68

68

68

BB Drop

50

50

50

50

50

Chainstay Length

420

420

420

420

420

Fork Length

487

487

487

487

487

Fork Offset

51

51

51

51

51

Wheelbase

1071

1090

1106

1141

1156

Stack

579

590

590

598

598

Reach

394

410

426

457

472

Front Center

656

675

691

726

741

Standover

722

768

777

789

816

Binary Bicycles SuperB Series comparison chart.