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Surly Frame Specifications

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1X1 ® FRAME SPECIFICATIONS

DESCRIPTION
SIZE Seat Tube
(C-T)
Top Tube (C-C) Top Tube (EFFECTIVE) Seat Tube Angle Head AngleBB Drop Chain StaysStand-over HeightFork LengthFork Rake

S (16")

406 mm

519 mm

542mm (21.3")

73°

71°

51mm

419 mm

752mm

421mm

45 mm

M (18")

457 mm

550 mm

579 mm (22.8")

73°

71°

51mm

419 mm

764 mm

421mm

45 mm

L (20")

508 mm

563 mm

590 mm (23.2")

73°

71°

51mm

419 mm

794 mm

421mm

45 mm

XL (22")

559 mm

615 mm

615 mm (24.2")

73°

71°

51mm

419 mm

836 mm

421mm

45 mm

Top tube measurements are given in both actual (c-c) and effective (true measurement of the size of the rider compartment). Top tube is level on XL.

Standover height changes significantly with tire size and fork choice; our measurement given is from top-center of top tube to the ground using our supplied fork and a pair of relatively large Tioga DH 2.1 tires that measured 676 mm in diameter on our rim.

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CROSS-CHECK ® FRAME SPECIFICATIONS

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Tubing:

100% Surly 4130 Cro-moly steel. Main triangle double-butted. TIG welded.

Rear Dropouts:

Long horizontal dropouts with adjusters feature single-speed compatibility, wheelbase adjustability and our exclusive Gnot-riteª 132.5 mm spacing to easily fit 130 mm road or 135 mm MTB hubs.

Braze-ons:

Cantilever bosses front and rear, fender eyelets front and rear, and dual water-bottle mounts. Down tube shift cable routing.

Seatpost diameter:

27.2mm

Seatpost clamp diameter:

30.0 mm Surly Constrictor™ included.

Headset:

1 1/8” threadless.

Bottom bracket shell:

68 mm wide, threaded English 1.37x24t.

Tire Clearance:

Proprietary FFFª (Fatties Fit Fine) chainstays and our custom fork give room for tires up to 700x45c with mud and fender clearance left over. Seriously!

Chainring Clearance:

Though we haven't yet tried a '56', we manipulated the chainstays heavily so you can fit whatever size rings you want, so go for it!

Color:

Blood Red and Jet Black.

42 cm

46 cm

50 cm

52 cm

54 cm

56 cm

58 cm

60 cm

Seat Tube
Inches
mm
(C-T)

16.5
420.0

18.1
460.0

19.7
500.0

20.5
520.0

21.3
540.0

22.0
560.0

22.8
580.0

23.6
600.0

Top Tube
Inches   mm
(Effective)

20.6
522.0

20.8
528.8

21.3
541.8

21.5
547.1

22.0
560.0

22.4
570.0

22.8
580.0

23.6
600.0

Head Tube
Angle
degrees

72.0°

72.0°

72.0°

72.0°

72.0°

72.0°

72.0°

72.0°

Seat Tube
Angle
degrees

75.0°

74.5°

74.0°

73.5°

73.0°

72.5°

72.5°

72.0°

Bottom Bracket
Drop
Inches
mm

2.6
66.0

2.6
66.0

2.6
66.0

2.6
66.0

2.6
66.0

2.6
66.0

2.6
66.0

2.6
66.0

Chain Stay
Length
Inches
mm

16.5
420.0

16.5
420.0

16.5
420.0

16.5
420.0

16.5
420.0

16.5
420.0

16.5
420.0

16.5
420.0

Wheel
Base
Inches
mm

39.0
989.9

39.1
991.9

39.6
1005.3

39.6
1006.0

39.9
1014.4

40.1
1019.8

40.6
1030.0

41.1
1044.8

Standover
Height*
Inches
mm

28.8
731.9

29.6
750.7

30.3
769.4

30.6
778.4

31.2
793.0

31.9
810.7

32.7
829.9

33.4
847.4

Head Tube
Length
Inches
mm

3.6
91.0

3.6
91.0

3.6
91.0

3.6
91.0

4.0
102.0

4.8
121.0

5.6
141.0

6.3
160.0

Fork
Length
Inches
mm

15.7
400.0

15.7
400.0

15.7
400.0

15.7
400.0

15.7
400.0

15.7
400.0

15.7
400.0

15.7
400.0

Fork
Rake
Inches
mm

1.7
44.0

1.7
44.0

1.7
44.0

1.7
44.0

1.7
44.0

1.7
44.0

1.7
44.0

1.7
44.0

*Measurements use tire with 685 mm outer diameter (Ritcheyª 700c x 30 SpeedMaxª), and taken from middle of top-tube to level ground.

Cross-Check Frame Weights:

Size

Frame

42cm

4.45 lbs

46cm

4.45

50cm

4.45

52cm

4.57

54cm

4.65

56cm

4.73

58cm

4.74

60cm

4.88

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Surly Cross-Check cyclocross frames and complete bikes

The Surly 1 X 1 Singlespeed MTB

The Surly Karate Monkey 29 inch do everything frame

The Surly Long Haul Trucker touring frame

The Surly Pacer road frame

The Surly Pugsley go everywhere frame

The Surly Steamroller fixed-gear road frame.

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