Surly  Steamroller

Ah, the Steamroller. What a sublime ride. We love it and so do a lot of other people. It was designed as a singlespeed/fixed gear street bike, and it’s as fine an urban trawler as you will find. The 4130 CroMo frame is quick like a bunny, and durable too, as an evryday street bike should be. We include 25mm tires, but the frame will accept tires up to about 38mm and that opens up all sorts of possibilities. Asphalt isn't necessarily smoother than singletrack, afterall. We offer it as a fixed gear but the hub is threaded fixie on one side, with SS freewheel threads on the other, so you could add a single speed freewheel if you'd rather do that. We include front and rear brakes because having brakes is a good idea, but there are no rear housing stops. There's not much else either. Just a pair of water bottle cage bosses on the seat tube. And hey! No snivelling about the location. Seat tube, down tube, nobody can agree on anything. Criminy.

SPECS
Frameset

Frame	Surly Steamroller, 100% Surly 4130 CroMoly steel. Main triangle double butted. TIG-welded
Fork	Surly Steamroller, 100% CroMoly, lugged and brazed. 1-1/8" threadless steer tube

Drivetrain

Crankset	Andel, Forged arms. 47t, 3/32" aluminum chainring. Black
Pedals	NOT INCLUDED, NOT INCLUDED
Bottom Bracket	T.H.C., 68 x 103mm
Cog	Surly fixed-gear, 19t, 3/32" Surly lockring included (f/w not included)
Chain	SRAM, PC-830

Components

Headset	Ritchey Logic Comp, 1-1/8" threadless, w/ 30mm spacers. Black
Stem	Kalloy AS-009, 1-1/8" threadless. Forged. 26.0mm clamp. Black
Handlebar	HL, Aluminum. No housing grooves. Black
Handlebar Wrap	Co-Union Cork Mix, Feels good. Black
Brake Levers	Tektro RL570, Front and rear cyclocross style levers (front installed).
Brake Calipers	Tektro R356, Front and rear calipers included (front installed). Black
Seatpost	Kalloy - SP-248D, 27.2mm Black
Seatpost Clamp	Surly Stainless, Black stainless steel
Saddle	WTB SST, Vinyl. CroMo. Black

Wheels

Hubs	Surly, 32h, 120mm OLD fixed/free. Black
Spokes	DT Swiss, 14g. Black. 12mm Silver brass nipples
Rims	Alex DA-22, 700c, 32h. Black
Tires	Maxxis Detonator, 700 x 25t. Black
Tubes	Cheng Shin, 700 x 25t

GEOMETRY

	49cm	53cm	56cm	59cm	62cm
Seat Tube Length (Center-Top)	19.3	20.9	22.0	23.2	24.4
Top Tube Length (Center-Center)	20.7	21.5	22.4	23.1	23.9
Effective Top Tube Length (Center-Center)	20.8	21.5	22.4	23.1	23.9
Head Tube Angle	72.5	73.0	73.5	74.0	74.0
Seat Tube Angle	74.5	74.0	73.5	73.0	73.0
BB Drop	2.8	2.8	2.8	2.8	2.8
Chainstay Length	15.7	15.7	15.7	15.7	15.7
Wheelbase	38.0	38.1	38.5	38.9	39.7
Standover Height	29.5	30.7	31.8	32.9	34.1
Head Tube Length	3.3	4.3	5.4	6.4	7.7
Fork Length	14.8	14.8	14.8	14.8	14.8
Fork Rake	1.5	1.5	1.5	1.5	1..5

Measurements use tire with outer diameter of 682mm (700c x 28), and taken from middle of toptube to level ground