
Velopedia Bicycle Archive
Surly Grappler - Purple Dust Bunny
Touring bicycle from the Velopedia specification archive.
- Model year
- Not published by manufacturer
- Original MSRP
- $1,999.00
- Sizes
- X-Small; Small; Medium; Large; X-Large
- Colors
- Purple Dust Bunny
- Weight
- 30 lb. 5 oz. for Medium
- Geometry
- 5 manufacturer sizes
- Archive ID
- 900000480
- Catalog verified
- August 13, 2026
Current market
0 close matchesVelopedia analysis
What the specifications mean
The calculated 436% cassette spread is a clearer measure of gearing breadth than the component-group name by itself. The mixed wheel system uses different front and rear bead-seat diameters, so tires, tubes, rims and spare wheels are not interchangeable end to end. For the steel frame, paint damage and moisture entry matter because corrosion can begin at scratches, vent holes or internal surfaces.
Used-bike inspection
If you’re buying this bike used
Before any test ride: both brakes should stop the bike firmly and release cleanly; both wheels should run true and be securely attached; tires should have no casing damage; and the headset, handlebar, stem, cranks and pedals should have no looseness or play.
- FrameCheck paint chips, vent holes and the inside of the seat tube for corrosion. Also look for dents, bent tubes and cracking around welded or brazed joints.
- DrivetrainShift through every gear under light load and measure chain wear. Confirm that the shifter, derailleur, chain and cassette belong to the same 10-speed system.
- Wheels & tiresSpin both wheels and watch the rims for side-to-side or vertical movement. Check for dents, cracks, loose or uneven spokes and hub play, then inspect both tire casings for cuts, cracking or exposed threads.
- BrakesTest each brake separately and confirm it stops firmly and releases cleanly. Inspect the pads and braking surfaces for wear or contamination, and check the cables or hoses for damage.
- Bottom bracketTurn the cranks slowly, feel for rough bearings and check for side-to-side play. Creaking under load deserves investigation but does not identify the source by itself.
This interpretation explains relationships in the published data. Confirm exact standards and dimensions before ordering parts or performing service.
Frameset
| Frame Construction | Surly Grappler - 4130 Chromoly, Natch tubing, double-butted main triangle, TIG welded, ED coated |
|---|---|
| Frame Material | Steel |
| Fork | Surly Dinner Fork - 4130 Chromoly, Natch tubing, double-butted tapered fork blades, TIG welded, ED coated |
| Fork Material | Steel |
Drivetrain
| Shifters | microSHIFT ADVENT X |
|---|---|
| Front Derailleur | N/A |
| Rear Derailleur | microSHIFT ADVENT X |
| Crankset | Samox, 32t |
| Bottom Bracket | Samox BSA |
| Cassette | microSHIFT ADVENT X, 11-48t, 10-spd |
| Chain | KMC X10 |
Brakes
| Brakes | Brake Calipers: Tektro Mira; Brake Levers: microSHIFT ADVENT X; Rotors: Tektro Front: 180mm, Rear: 160mm |
|---|
Cockpit & Contact Points
| Headset | Cane Creek 40 |
|---|---|
| Handlebar | Salsa Cowchipper |
| Stem | Promax DA-296, 31.8mm |
| Saddle | WTB Volt |
| Seatpost | TranzX YSP15, 30.9, 100mm travel |
Wheels & Tires
| Hubs | (F) Novatec 15 x 110mm, 6-bolt, 32h / (R) Novatec 12 x 148mm, 6-bolt, 32h |
|---|---|
| Rims | WTB ST i40 TCS 2.0 |
| Spokes | 14G Black |
| Front Tire | Teravail Ehline, 27.5 x 2.5", Light and Supple, Tan Sidewalls |
| Rear Tire | Teravail Ehline, 27.5 x 2.5", Light and Supple, Tan Sidewalls |
| Wheel Size | 27.5"; 29" |
Size-specific frame data
Geometry
Manufacturer-published geometry normalized for consistent archival comparison. Effective top tube and reach remain separate measurements because they describe different aspects of fit.
| Measurement | X-Small | Small | Medium | Large | X-Large |
|---|---|---|---|---|---|
| Seat tube | 316 mm | 386 mm | 437.2 mm | 488 mm | 539 mm |
| Effective top tube | 560 mm | 590 mm | 610 mm | 640 mm | 660 mm |
| Head tube | 160 mm | 180 mm | 200 mm | 220 mm | 240 mm |
| Head-tube angle | 69.5° | 69.5° | 69.5° | 69.5° | 69.5° |
| Seat-tube angle | 73° | 73° | 73° | 73° | 73° |
| Chainstay / rear center | 425 mm | 425 mm | 425 mm | 425 mm | 425 mm |
| Wheelbase | 1057 mm | 1088 mm | 1109 mm | 1140 mm | 1162 mm |
| Bottom-bracket drop | 50 mm | 50 mm | 50 mm | 50 mm | 50 mm |
| Reach | 381 mm | 405 mm | 420 mm | 444 mm | 458 mm |
| Stack | 585 mm | 604 mm | 623 mm | 641 mm | 660 mm |
| Standover height | 719 mm | 762 mm | 795 mm | 829 mm | 862 mm |
| Fork offset / rake | 50 mm | 50 mm | 50 mm | 50 mm | 50 mm |
| Fork length / axle-to-crown | 420 mm | 420 mm | 420 mm | 420 mm | 420 mm |
| Crank length | 170 mm | 170 mm | 175 mm | 175 mm | 175 mm |
| Stem length | 60 mm | 60 mm | 60 mm | 60 mm | 60 mm |
| Handlebar width | 400 mm | 420 mm | 440 mm | 460 mm | 480 mm |
Geometry source: Manufacturer HTML geometry table ↗ Measurements can vary by configuration, wheel size, or flip-chip position where noted by the manufacturer.
Gallery
Live marketplace data
Current Market Snapshot
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Specifications are presented as a reference. Components may vary by market, size, production run, or later manufacturer revisions.




