MSRP | $1,900 | $2,099 |
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Where to Buy | — $1 At | — $1 At |
Category | Gravel | Touring |
Weight | 28.4 lbs | |
| Steel | Aluminum | |
Fork | Steel | Aluminum |
Wheels | Aluminum | Aluminum |
| 27.5″ / 29″ | 29″ | |
Clearance | 3" | |
Brakes | Mechanical Disc | Hydraulic Disc |
Groupset | NX Eagle | GX, X5 |
Drivetrain | 1 × 12 | 2 × 10 |
Brand Site | ||
Summary | The Surly ECR and Trek 920 are both road bikes. The ECR has a steel frame, steel fork, 27.5″ / 29″ aluminum wheels, and better components; while the 920 has an aluminum frame, aluminum fork, 29″ aluminum wheels, and higher gearing. | |
Based on frame geometry and build specs.
Frame | Surly ECR, 100% Surly 4130 CroMoly steel. Surly ECR, 100% Surly 4130 CroMoly steel. ED coated. Double-butted main triangle. TIG-welded Tire Clearance: 3" | 100 Series Alpha aluminum, rack & fender mounts, 142x12mm thru axle, 73mm threaded bottom bracket Tire Clearance: 3" |
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Fork | Surly ECR, TIG-welded custom-butted 4130 CroMoly, non-suspension corrected, 1-1/8˝ steerer tube, 203mm disc brake clearance | 920 alloy disc adventure, 15mm thru axle |
Bottom Bracket | SRAM Powerspline 118/73 | Sealed cartridge, GXP Type |
Headset | Cane Creek, 40 series, 1-1/8" | FSA Integrated, sealed cartridge bearing, 1-1/8'' |
Stem | ProMax 4 bolt, 31.8 | Size: 49, Bontrager Elite Basic, 31.8mm, Blendr compatible, 7 degree, 80mm length; Size: 52, Bontrager Elite Basic, 31.8mm, Blendr compatible, 7 degree, 90mm length; Size: 54, 56, Bontrager Elite, 31.8mm, Blendr compatible, 7 degree, 100mm length; Size: 58, 61, Bontrager Elite, 31.8mm, Blendr compatible, 7 degree, 110mm length |
Handlebar | Surly Moloko | Bontrager Race VR-C, 31.8mm |
Saddle | WTB Volt Sport | Bontrager Evoke |
Seatpost | Promax 27.2, 350L, Offset | Bontrager alloy, 27.2mm, 12mm offset, 330mm length |
Grips | Velo Lock-On |
Rear Derailleur | SRAM NX Eagle | SRAM GX, Type 2, long cage |
|---|---|---|
Front Derailleur | None | SRAM X5, 34.9mm clamp |
Crank | SRAM NX Eagle 30T | Size: 49, 52, 54, ProWheel forged alloy, 42/28, 2-piece, 170mm length; Size: 56, 58, 61, ProWheel forged alloy, 42/28, 2-piece, 175mm length |
Shifters | SRAM NX Eagle | Size: 49, 52, 54, 56, 58, 61, SRAM S700, 2-speed; Size: 49, 52, 54, 56, 58, 61, SRAM S700, 10 speed |
Cassette | SRAM Eagle 11-50T, 12 speed | SRAM PG-1030, 11-36, 10 speed |
Chain | SRAM NX Eagle | KMC X10, 10 speed |
Brakes | Avid BB7, Centerline rotors. 180/160mm front & rear | Hydraulic Disc |
Brake Levers | Avid FR-5 |
Rims | WTB Scraper i40 TSC | Front: Bontrager Duster Elite, Tubeless Ready, 100x15mm thru axle, Rear: Bontrager Duster Elite, Tubeless Ready, 6-bolt disc, Shimano 10 freehub, 142x12 thru axle |
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Front Hub | OE 32h QR | |
Rear Hub | OE 32h Thru axle | |
Tires | Surly Knard 27.5x3.0", 60TPI Tubeless Ready | Bontrager XR1, 29x2.00'' [p18] |
Disc Rotors | Avid G2 Cleansweep, 160mm, 6-bolt |
Racks | Size: 49, 52, 54, Bontrager BackRack Deluxe, Interchange compatible, size small; Size: 49, 52, 54, 56, 58, 61, 920 Touring; Size: 56, 58, 61, Bontrager BackRack Deluxe, Interchange compatible, size large |
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