2016 Surly Bikes ECR 29+ (Legacy)
- Category
- Rigid MTB
- Design
- Flat Bar, Rigid, suspension corrected
- Frame
- Steel
- Fork
- Steel
- Features
- Disc brake
Geometry
xSmall 14" | Small 16" | Medium 18" | Large 20" | xLarge 22" | xxLarge 24" | |
Stack | 592mm | 596mm | 606mm | 615mm | 629mm | 643mm |
Reach | 384mm | 399mm | 416mm | 434mm | 437mm | 448mm |
Stack to Reach Ratio | 1.54:1 | 1.49:1 | 1.46:1 | 1.42:1 | 1.44:1 | 1.44:1 |
Seat Tube Length, C-T | 356.5mm | 406.4mm | 457.2mm | 508mm | 558.8mm | 609.6mm |
Top Tube Length, Effective/Horizontal Center | 560mm | 575mm | 595mm | 615mm | 630mm | 645mm |
Top Tube Slope | 27.2deg | 21.8deg | 17.1deg | 12.5deg | 9deg | 5.6deg |
Head Tube Angle | 69.5deg | 69.5deg | 69.5deg | 69.5deg | 69.5deg | 69.5deg |
Seat Tube Angle | 72.5deg | 72.5deg | 72.5deg | 72.5deg | 72.5deg | 72.5deg |
Head Tube Length | 85mm | 90mm | 100mm | 110mm | 125mm | 140mm |
Bottom Bracket Drop | 80mm | 80mm | 80mm | 80mm | 80mm | 80mm |
Bottom Bracket Height | 307.5mm | 307.5mm | 307.5mm | 307.5mm | 307.5mm | 307.5mm |
Chainstay Length | 451mm | 451mm | 451mm | 451mm | 451mm | 451mm |
Chainstay Length Max | 451mm | 451mm | 451mm | 451mm | 451mm | 451mm |
Chainstay Length Horizontal | 443.9mm | 443.9mm | 443.9mm | 443.9mm | 443.9mm | 443.9mm |
Chainstay Length Horizontal Max | 443.9mm | 443.9mm | 443.9mm | 443.9mm | 443.9mm | 443.9mm |
Front-Center | 630.8mm | 646.6mm | 667.6mm | 688.6mm | 696.8mm | 712.9mm |
Front-Center Horizontal | 625.7mm | 641.7mm | 662.8mm | 684mm | 692.2mm | 708.4mm |
Wheelbase | 1069.5mm | 1085.5mm | 1106.6mm | 1127.8mm | 1136mm | 1152.2mm |
Wheelbase Max | 1069.5mm | 1085.5mm | 1106.6mm | 1127.8mm | 1136mm | 1152.2mm |
Fork Offset/Rake | 47mm | 47mm | 47mm | 47mm | 47mm | 47mm |
Fork Length (Axle-To-Crown) | 468mm | 468mm | 468mm | 468mm | 468mm | 468mm |
Trail | 94.7mm very high | 94.7mm very high | 94.7mm very high | 94.7mm very high | 94.7mm very high | 94.7mm very high |
Mechanical Trail | 88.7mm | 88.7mm | 88.7mm | 88.7mm | 88.7mm | 88.7mm |
Wheel Flop | 31.1mm | 31.1mm | 31.1mm | 31.1mm | 31.1mm | 31.1mm |
Standover Height | 717.6mm | 753.4mm | 789mm | 822.7mm | 855.7mm | 889mm |
Tire to Pedal Spindle | 73.3mm 170 mm cranks | 89.1mm 170 mm cranks | 105.1mm 175 mm cranks | 126.1mm 175 mm cranks | 134.3mm 175 mm cranks | 145.4mm 180 mm cranks |
Pedal Spindle to Ground Clearance | 137.5mm 170 mm cranks | 137.5mm 170 mm cranks | 132.5mm 175 mm cranks | 132.5mm 175 mm cranks | 132.5mm 175 mm cranks | 127.5mm 180 mm cranks |
(Legacy) Build
xSmall 14" | Small 16" | Medium 18" | Large 20" | xLarge 22" | xxLarge 24" | |
Wheel Size | 700C/29 in 622 mm BSD | 700C/29 in 622 mm BSD | 700C/29 in 622 mm BSD | 700C/29 in 622 mm BSD | 700C/29 in 622 mm BSD | 700C/29 in 622 mm BSD |
Tire Width | 3in | 3in | 3in | 3in | 3in | 3in |
Tire Width Max | 3in | 3in | 3in | 3in | 3in | 3in |
Tire Outer Diameter | 775mm | 775mm | 775mm | 775mm | 775mm | 775mm |
Bike Length with Tires | 1844.5mm | 1860.5mm | 1881.6mm | 1902.8mm | 1911mm | 1927.2mm |
Crank Length | 170mm | 170mm | 175mm | 175mm | 175mm | 180mm |
Handlebar Width | 710mm | 710mm | 710mm | 710mm | 710mm | 710mm |
Stem Length | 90mm | 100mm | 100mm | 110mm | 120mm | 130mm |
Stack and Reach vs. Category Trend
Very Upright
Somewhat Upright
Average
Somewhat Aggressive
Very Aggressive
The Bike Insights Upright/Aggressive scale is based on analysis of a bike’s proportions relative to similar sized bikes in the same category.
Learn more about the Upright/Aggressive ScaleCategory Trend
Rigid MTBSource:https://surlybikes.com/bikes/legacy/ecr/ecr_mre_green/geometry