• Surly ECR bike Beige Pant Suit color side view
  • Surly ECR bike Blacktacular color side view
  • Surly ECR bike MRE Green color side view
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ECR

ECR

⚠️ WARNING: This product can expose you to chemicals known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.

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Sometimes the only way to break the humdrum of life is with a bike ride off the beaten path. Sometimes just for a quick overnighter, sometimes a month and half fully-loaded through nine countries. ECR is our answer to those sometimes.

As our flagship bikepacking rig, ECR is adaptable to frame bags for the minimalist approach, as well as racks and bags to maximize gear hauling potential. ECR is most at home when your tour starts on dirt and gets more technical from there.

  • Two wheel platforms available: 27.5+ for frame sizes XS–M and 29+ for M–XL
  • All the accessory barnacles you could ever possibly ask for including rack and fender, multiple three-pack mounts and mid-blade.
  • Gnot-Boost rear spacing with Rohloff torque arm slot and Bill/Ted trailer mount
  • Clearance for 27.5" x 3" (XS–M) or 29” x 3” (M–XL) tires

Specifications

Geometry

Geometry Diagram

2014

 

SIZE xSmall (14) Small (16) Medium (18) Large (20) xLarge (22) xxLarge (24)
Reach 384.2 398.5 416.1 433.8 436.7 447.6
Stack 591.5 596.2 605.5 614.9 628.9 643.0
Head Tube Angle 69.5° 69.5° 69.5° 69.5° 69.5° 69.5°
Head Tube Length 85.0 90.0 100.0 110.0 125.0 140.0
Seat Tube Length 356.5 406.4 457.2 508.0 558.8 609.6
BB Drop 80.0 80.0 80.0 80.0 80.0 80.0
Wheelbase 1069.5 1085.5 1106.6 1127.8 1136.0 1152.2
Chainstay Length 451.0 451.0 451.0 451.0 451.0 451.0
Top Tube Length, Actual 542.0 547.4 562.8 582.4 597.2 618.3
Top Tube Length, Effective 560.0 575.0 595.0 615.0 630.0 645.0
Seat Tube Angle 72.5° 72.5° 72.5° 72.5° 72.5° 72.5°
Standover Height 717.6 753.4 789.0 822.7 855.7 889.0
Fork Length 468.0 468.0 468.0 468.0 468.0 468.0
Fork Rake 47.0 47.0 47.0 47.0 47.0 47.0

All dimensions are preliminary and subject to change *1 Standover is measured from the top of the TT, at the center, with a tire measuring approximately Ø775mm *2 St angle is the effective ST angle.

Frame Specs

  • Tubing: Surly 4130 CroMoly steel. Custom double-butted trumpet tube main triangle. TIG-welded. ED coated.
  • Rear Dropouts: Beige Pantsuit and Blacktacular: Horizontal
    slotted with derailleur hanger; Surly “Gnot Boost” 135, 142, or 148mm
    hub spacing compatibility. Features Rohloff torque arm slot and threaded
    eyelets for fenders, racks and Surly trailer mounts.
  • Rear Dropouts: MRE Green: Horizontal slotted with
    derailleur hanger, 135mm O.L.D. Features Rohloff torque arm slot and
    threaded eyelets for fenders, racks and Surly trailer mounts.
  • Brake Compatibility: 51mm I.S. disc calipers (Max rotor size 160mm rear with Surly brake adapter, 203mm front)
  • Braze-ons/extras: Beige Pantsuit and Blacktacular: XS–M
    (27.5+) has two triple bottle-mounts. M–XL (29+) has two water bottle
    mounts and one triple bottle-mount. Surly Trip Guide full line guides
    for brake and derailleurs, fender and rack eyelets.
  • Braze-ons/extras: MRE Green: Two water bottle mounts on
    XS–M, three water bottle mounts on L–XXL, Surly Trip Guide full line
    guides for brake and derailleurs, fender and rack eyelets.
  • Seatpost Diameter: 27.2mm
  • Seatpost Clamp Diameter: 30.0mm (Surly stainless included)
  • Headset/Steerer Tube: 1-1/8" threadless
  • Front Derailleur Clamp Diameter:
    Beige Pantsuit and Blacktacular: 28.6mm, High direct-mount standard, clamp adapter included

    MRE Green: 31.8mm, High direct-mount standard, clamp adapter included
  • Bottom Bracket Shell: 73mm shell width, threaded standard English (1.37" x 24t)
  • Chainring Clearance: Triple 22/34/44t, Double 26/39t, Max
    single ring clearance, middle position, 34t. Outer position 44t. (Triple
    will only work with 2.5" tires or smaller)
  • Tire Clearance:
    29+ is 29 x 3.0" (with fenders)
    27.5+ is 27.5 x 3.0" (with fenders)
    Individual tire and rim combos affect tire clearance
  • Fork: TIG-welded custom-butted 4130 CroMoly, non-suspension corrected, 1-1/8" steerer tube, 203mm disc brake clearance
  • Thru Axle: HU0134 Surly 12x142/148 Rear Thru Axle
  • Color Option:
    Norwegian Cheese Brown
    Beige Pantsuit
    Blacktacular
    MRE Green

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