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Surly

Surly Lowside

£1,850.00
Color: Dream Tangerine
Size: XS

OVERVIEW

Lowside is the bike that gets you across town for a quick rip on singletrack, then over to the bar for a night out.

Your BMX Bike All Grown Up

Lowside is like the grownup version of the bike you rode when you were a kid and still had hopes and dreams and some semblance of ambition. It’s just as happy riding singletrack as it is parked outside your favorite drinking establishment.

Lowside is a single speed mountain bike. Singlespeeding has been a part of Surly’s DNA since day one when we launched the 1x1 Rat Ride. After a lot of Homie Fall Fests and more feats of strength than we can recall, we decided to discontinue it a couple years back. Lowside picks up right where the 1x1 left off.

“Some have dubbed the Lowside the ultimate pub cruiser.”

  • Modern trail standards: dropper post compatibility, 44mm headtube, Gnot-Boost rear spacing, thru-axles
  • Compatibility with most mountain bike standards makes it the perfect parts bin bike (no rim brakes allowed though)
  • Spec'd in alternating years with 26 x 3” or 27.5 x 2.8” tires, the Lowside remains capable of running either option
        

NOTE: You can ride your bike wherever the hell you want, but this is what we think this bike is best at.

SPECIFICATIONS

BUILD KIT

Frameset

Frame 
Surly Lowside Frame.  4130 Chromoly, Natch tubing, double-butted main triangle, TIG welded, E.D. coated
Fork
Surly Lowside Fork.  4130 Chromoly, Natch tubing, double-butted tapered fork blades, TIG welded, E.D. coated
Seatpost Clamp
Surly Stainless 33.1mm clamp

Components

Headset
Cane Creek
Brakes
Tektro Hydro M275/276
Brake Levers
Tektro
Rotors
Tektro 160/160mm
Shifters
N/A
Stem
Sunday Freeze top load 22.2mm clamp
Handlebar
Surly Sunrise
Grip/Tape
Velo Black
Saddle
Selle Italia Black
Seatpost
2 Bolt, 30.9mm

Drivetrain

Crankset
SRAM NX 32t
Bottom Bracket
SRAM PS
Front Derailleur
N/A
Rear derailleur
N/A
Cog or cogset
Surly 17t w/ spacer kit
Chain
KMC X10

Wheels

Front Hub
Novatec 15x110
Rear Hub
Novatec 12x148
Rims
WTB ST i35 TCS
Tires
Maxxis Rekon+ 27.5x2.8 60tpi

*Complete bike spec subject to change

GEOMETRY

MY22 Lowside Geometry - 27.5+

 

RIGID FORK

units: in

SIZE XS SM MD LG XL
Rider Height 4'8"+ 5'0"+ 5'5"+ 5'9"+ 6'0"+
Reach 16.3 16.9 17.5 18.1 18.8
Stack 21.3 22.1 22.6 23.2 23.7
Head Tube Angle 70.0° 70.0° 70.0° 70.0° 70.0°
Head Tube Length 4.3 4.9 5.5 6.1 6.7
Seat Tube Length 12.4 14.4 16.4 18.3 20.3
BB Drop 2.2 2.2 2.2 2.2 2.2
Wheelbase 42.0 42.9 43.7 44.5 45.4
Chainstay Length 16.7 16.7 16.7 16.7 16.7
Top Tube Length, Actual 22.1 22.7 23.2 24.0 24.8
Top Tube Length, Effective 22.4 23.2 24.0 24.8 25.6
Seat Tube Angle 74.0° 74.0° 74.0° 74.0° 74.0°
Standover Height 27.6 28.7 30.0 31.2 32.4
Stem Length
Stem Angle 34mm rise° 34mm rise° 34mm rise° 34mm rise° 34mm rise°
Handlebar Width 32.2 32.2 32.2 32.2 32.2
Crank Length 6.7 6.7 6.9 6.9 6.9
Fork Length 16.5 16.5 16.5 16.5 16.5
Fork Rake 1.9 1.9 1.9 1.9 1.9

*Standover is measured from the top of the TT, at the center, with a tire measuring approximately Ø710mm 

units: mm

SIZE XS SM MD LG XL
Rider Height 1.42m+ 1.52m+ 1.65m+ 1.75m+ 1.85m+
Reach 414.5 429.3 445.3 461.0 477.0
Stack 542.2 560.3 574.4 588.5 602.5
Head Tube Angle 70.0° 70.0° 70.0° 70.0° 70.0°
Head Tube Length 110.0 125.0 140.0 155.0 170.0
Seat Tube Length 316.0 366.0 416.0 466.0 516.0
BB Drop 55.0 55.0 55.0 55.0 55.0
Wheelbase 1068.0 1089.0 1110.0 1131.0 1152.0
Chainstay Length 425.0 425.0 425.0 425.0 425.0
Top Tube Length, Actual 562.4 575.6 589.7 608.5 630.4
Top Tube Length, Effective 570.0 590.0 610.0 630.0 650.0
Seat Tube Angle 74.0° 74.0° 74.0° 74.0° 74.0°
Standover Height 700.0 729.0 762.0 792.0 823.0
Stem Length 52 52 52 52 52
Stem Angle 34mm rise° 34mm rise° 34mm rise° 34mm rise° 34mm rise°
Handlebar Width 820 820 820 820 820
Crank Length 170 170 175 175 175
Fork Length 420 420 420 420 420
Fork Rake 47.0 47.0 47.0 47.0 47.0

*Standover is measured from the top of the TT, at the center, with a tire measuring approximately Ø710mm


SUSPENSION FORK

units: in

SIZE XS SM MD LG XL
Rider Height 4'8"+ 5'0"+ 5'5"+ 5'9"+ 6'0"+
Reach 15.3 15.9 16.5 17.1 17.8
Stack 22.2 22.8 23.4 23.9 24.5
Head Tube Angle 67.3° 67.4° 67.5° 67.5° 67.6°
Head Tube Length 4.3 4.9 5.5 6.1 6.7
Seat Tube Length 12.4 14.4 16.4 18.3 20.3
BB Drop 1.4 1.4 1.4 1.4 1.5
Wheelbase 42.4 43.2 44.1 44.9 45.7
Chainstay Length 16.7 16.7 16.7 16.7 16.7
Top Tube Length, Actual 22.1 22.7 23.2 24.0 24.8
Top Tube Length, Effective 22.8 23.5 24.3 25.1 25.9
Seat Tube Angle 71.4° 71.4° 71.5° 71.5° 71.6°
Standover Height 28.7 29.7 31.0 32.2 33.4
Stem Length 2.36 2.36 2.36 2.36 2.36
Stem Angle
Handlebar Width 32.2 32.2 32.2 32.2 32.2
Crank Length 6.7 6.7 6.9 6.9 6.9
Fork Length 18.4 18.4 18.4 18.4 18.4
Fork Rake 1.7 1.7 1.7 1.7 1.7

*100mm suspension fork @25% sag

units: mm

 

SIZE XS SM MD LG XL
Rider Height 1.42m+ 1.52m+ 1.65m+ 1.75m+ 1.85m+
Reach 388.0 403.7 419.5 435.5 451.0
Stack 564.5 579.8 593.5 608.0 622.0
Head Tube Angle 67.3° 67.4° 67.5° 67.5° 67.6°
Head Tube Length 110.0 125.0 140.0 155.0 170.0
Seat Tube Length 316.0 366.0 416.0 466.0 516.0
BB Drop 35.6 36.0 36.4 36.7 37.0
Wheelbase 1077.0 1098.0 1119.5 1140.5 1161.5
Chainstay Length 425.0 425.0 425.0 425.0 425.0
Top Tube Length, Actual 562.4 575.6 589.7 608.5 630.4
Top Tube Length, Effective 578.0 598.0 618.0 638.0 658.0
Seat Tube Angle 71.4° 71.4° 71.5° 71.5° 71.6°
Standover Height 729.0 755.0 787.0 817.0 848.5
Stem Length 60 60 60 60 60
Stem Angle
Handlebar Width 820 820 820 820 820
Crank Length 170 170 175 175 175
Fork Length 468.0 468.0 468.0 468.0 468.0
Fork Rake 42.0 42.0 42.0 42.0 42.0

 

*100mm suspension fork @25% sag

 

 

FRAME SPEC

Frame Construction

4130 Chromoly, Natch tubing, double-butted main triangle, TIG welded, ED coated

Fork Construction

4130 Chromoly, Natch tubing, double-butted tapered fork blades, TIG welded, ED coated

Rear Dropout Configuration

Horizontal slotted with optional vertical dumpout

Rear Hub Spacing

"Gnot-Boost" 145mm
12 x 142mm or 12 x 148mm (Surly axle included)
10 x 135mm with Surly 10/12 Adapter Washers (not included)

Front Hub Spacing

15 x 110mm (Surly axle included)

Rear Brake

Disc - 51mm I.S. (203mm max rotor)

Front Brake

Disc - 51mm I.S. (203mm max rotor)

Head Tube

Ø44mm

Steerer Tube

Ø28.6mm (1-1/8")

Crown Race

Ø30mm (1-1/8")

Stock Headset Upper (S.H.I.S)

ZS44/28.6

Stock Headset Lower (S.H.I.S)

EC44/30

Seat Collar

Ø33.1mm

Seatpost

Ø30.9mm

Front Derailleur (Clamp)

High direct mount top-pull (Ø34.9mm)
26mm offset adapter (not included) for 142 or 135mm rear hub spacing
29mm offset adapter (not included) for 148mm rear hub spacing

Max Chainring (CL) [3]

1x (Mtn):  33T
1x (Boost):  36T

Bottom Bracket

73mm threaded (1.37" x 24TPI)

Tire Clearance Frame [1]/[2]

26 x 3.0"
27.5 x 2.8"

Tire Clearance Fork [1]

26 x 3.0"
27.5 x 2.8"

Rigid Fork Spec

420 x 47mm

Max Suspension Fork Length [4]

490 x 47mm (26 100mm)

U1 Standard

Bottle Mounts Fork

N/A

Rack Mounts Frame

N/A

Rack Mounts Fork

N/A

Fender Mounts Frame

N/A

Fender Mounts Fork

N/A

Other Features

Internal dropper post routing compatible

[1] Different tire and rim combinations will result in different clearances. 

[2] Depending on drivetrain configuration, tire clearance may be limited by the chain and not the frame.

[3] Listed chainring clearance is worst case scenario.  Clearances vary widely depending on components and configurations.

[4] Suspension fork length listed at full extension (not at sag) 


Color: Dream Tangerine
Size: XS

Product information