Surly ECR MTB frameset tank green

Show all items from Surly
  • Caution:
    The images above are symbolic in nature and may differ from the actually delivered goods respectively the delivery inclusion might differ.
    Hence we please you to carefully read the item name and the item description. Just drop us a short mail in case that you have questions though.
  • You can find more information about what there is exactly included in delivery on the left-side menu.
  • Frameset only!

    ECR is a plus-tired off-road touring bike designed for routes with way less pavement and a lot more trail.

    Our Go-To Bikepacking Bike

    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 XSM and 29+ for MXL
    • 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" (XSM) or 29 x 3 (MXL) tires (with or without fenders)


    Frameset
    • Frame: Surly ECR, 100% Surly 4130 CroMoly steel.
    • Fork: Surly ECR, TIG-welded custom-butted 4130 CroMoly, non-suspension corrected, 1-1/8˝ steerer tube, 203mm disc brake clearance
    • Seatpost: Clamp Surly Stainless, 30.0mm (Surly stainless included)



    27.5+ Geometry




    XS S
    M
    Reach 385.0 398.0 410.5
    Stack 556.0 579.5 603.0
    Head Tube Angle 69.0 69.0 69.0
    Head Tube Length 90.0 115.0 140.0
    Seat Tube Length 346.4 406.4 457.2
    BB Drop 60.0 60.0 60.0
    Wheelbase 1052.3 1074.0 1096.0
    Chainstay Length 435.0 435.0 435.0
    Top Tube Length, Actual 536.3 547.0 563.1
    Top Tube Length, Effective 555.0 575.0 595.0
    Seat Tube Angle 73.0 73.0 73.0
    Standover Height 726.0 766.0 802.0
    Fork Length 447.0 447.0 447.0
    Fork Rake 43.2 43.2 43.2
    *1 Standover is measured from the top of the TT, at the center, with a tire measuring approximately 735mm *2 St angle is the effective ST angle.


    29+ Geometry




    M
    L
    XL
    Reach 408.0 420.5 433.0
    Stack 609.5 633.0 656.5
    Head Tube Angle 70.0 70.0 70.0
    Head Tube Length 100.0 125.0 150.0
    Seat Tube Length 457.2 507.9 558.7
    BB Drop 80.0 80.0 80.0
    Wheelbase 1090.0 1111.0 1132.5
    Chainstay Length 451.0 451.0 451.0
    Top Tube Length, Actual 560.5 580.0 600.0
    Top Tube Length, Effective 600.0 620.0 640.0
    Seat Tube Angle 72.5 72.5 72.5
    Standover Height 805.0 840.0 875.0
    Fork Length 468.0 468.0 468.0
    Fork Rake 43.0 43.0 43.0
    *1 Standover is measured from the top of the TT, at the center, with a tire measuring approximately 775mm *2 St angle is the effective ST angle.


    Specifications
    • 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 (axle is included), 10 x 135mm with Surly 10/12 Adapter Washers (not included)
    • Front Hub Spacing: 10 x 100mm
    • Rear Brake: Disc 51mm I.S. (160mm max rotor) [5]
    • Front Brake: Disc 51mm I.S. (203mm max rotor)
    • Head Tube: 34mm
    • Steerer Tube: 28.6mm (1-1/8")
    • Crown Race: 30mm (1-1/8")
    • Headset Upper (S.H.I.S.): EC34/28.6
    • Headset Lower (S.H.I.S.): EC34/30
    • Seat Collar: 30mm
    • Seatpost: 27.2mm
    • Max Chainring (CL)[3]: 1x (Mtn): 34T, 2x (Mtn): 26/39T, 3x (Mtn): 22/34/44T
    • Bottom Bracket: 73mm threaded (1.37" x 24TPI)
    • Tire Clearance Frame [1]/[2]: 27.5+: 27.5 x 3.0" (with or without fenders), 27.5+: 29 x 2.6" (with or without fenders), 29+: 29 x 3.0" (with or without fenders)
    • Tire Clearance Fork [1]: 27.5+: 27.5 x 3.0" (without fenders), 27.5+: 27.5 x 2.8" (without fenders), 27.5+: 29 x 2.6" (without fenders), 27.5+: 29 x 2.5"(with fenders), 29+: 29 x 3.0" (with or without fenders)
    • Rigid Fork Spec: 27.5in: 447 x 43mm, 29in: 468 x 43mm,
    • Max Suspension Fork Length [4]: N/A
    • Bottle Mounts Frame: 27.5in: 2 Three-Pack, 29in: 2 Standard + 1 Three-Pack
    • Bottle Mounts Fork: 27.5in: 4 Three-Pack, 29in: 2 Three-Pack
    • Rack Mounts Frame: Yes (upper and lower threaded)
    • Rack Mounts Fork: Yes (upper, lower, and mid-blade threaded)
    • Fender Mounts Frame: Yes
    • Fender Mounts Fork: Yes
    • Other Features: Dedicated Rohloff cable routing and mount for OEM 2 axle plate, Dedicated Surly Trailer mounts


    [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 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)
    [5] Rear disc brake requires Surlys proprietary brake mount adapter.
  • Rate this product

    •  
    • Unfortunately, there isn't any review yet. Be the first one and share your experiences with thousands of other riders!
  • Attachements
    Surly ECR Framesheetinstruction manual
    306.92 KB
  • Customers who viewed this also viewed:
Almost worldwide delivery
Large stock & affordable prices
You are here:
Home  >  Components  >  Frames  >  Frames (MTB)
Login  /  Register