May

Bicycle Frame Surly Instigator Frame

Surly Instigator Frame

Designed for abusive riding and jumping
T IG-welded, double-butted Surly 4130 CroMoly with custom, CNCmachined, disc brake compatible (International Standard) rear dropouts; 1.5″ downtube and heavily gusseted front end for extra strength
Arched top tube for added standover clearance
1-1/8″ headtube, 29.4mm seatpost, 31.8mm seatpost clamp and front derailleur clamp diameter, 73mm bottom bracket shell, 135mm rear spacing
Brazed-on hydraulic line guides, removable cantilever pivots, two sets of bottle bosses, and downtube shift cable routing
Clearance for tires up to 2.7″ wide
International Standard Chain Guide mounts
Fork Travel: 100-130 mm
Front Derailleur Clamp: 31.8mm (1-1/4″)
Front Derailleur Style: Traditonal,Topswing
Front Derailleur Cable Pull: Bottom
Brake Type: Disc,Linear Pull
Wheel Size: 26″
Headset Type: 1-1/8″ Standard Cups
BB Shell Width: 73mm
Disc Mount Type: 51mm I.S. Rear
Rear Hub Spacing: 135 mm
Weight: 14″-6.25lbs 16″-6.51lbs 18″-6.73lbs 20″-6.99lbs
BB Thread Type: English
Seatpost: 29.4 mm

MEASUREMENTS / Measurements Key
	x-small	small	medium	large
ST (C-T) Inches mm	14.0 355.6	16.0 406.4	18.0 457.2	20.0 508.0
TT (C-C) Inches mm	21.0 533.5	21.5 546.6	22.6 574.4	23.8 604.1
TT (Effec.) Inches mm	22.0 558.8	22.6 573.9	23.6 599.3	24.6 624.4
HT Angle degrees	71.0°	71.0°	71.0°	71.0°
ST Angle degrees	72.0°	72.0°	72.0°	72.0°
BB Drop Inches mm	0.9 24.0	1.0 25.0	1.0 25.0	1.0 25.0
CS Length Inches mm	16.7 425.0	16.7 425.0	16.7 425.0	16.7 425.0
Wheel Base** Inches mm	41.1 1044.3	41.2 1045.3	41.9 1064.7	43.1 1096.0
S.O. Height* Inches mm	28.0 711.9	29.0 737.1	30.4 773.0	32.0 813.7
HT Length Inches mm	4.3 110.0	4.3 110.0	4.3 110.0	5.1 130.0
FK Length Inches mm	N/A	N/A	N/A	N/A
FK Rake Inches mm	N/A	N/A	N/A	N/A
Weight lbs.	6.15	6.41	6.61	6.84
Measurements taken using tire diameter of 676 mm (Tioga 2.1 DH), will vary with tire choice * Measurments taken using Marzocchi Z1 w/ 100mm travel, will vary with fork choice N/A = Frame sold sans fork