Based on published rear tire 29×2.6 (standard MTB rim assumed). Approximate circumference; actual rollout varies with tire and pressure. Theoretical, not a maximum achievable speed.
Velopedia Bicycle Archive
Surly Krampus Front Suspension - Blue Oyster Coat
Original specifications: 29" wheels · 34 lb. 9 oz. for Medium published weight · geometry for 4 published sizes.
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At a glance
- Model year
- Not published by manufacturer
- Category
- Mountain
- Original MSRP
- $2,699.00
- Sizes
- S, M, L, XL
- Colors
- Blue Oyster Coat
- Weight
- 34 lb. 9 oz. for Medium
- Geometry
- 4 manufacturer sizes
- In this record
- 21 specifications · 8 archived images · original MSRP · geometry
- Archive ID
- 900000932
Original buildSteel · 29"
Frameset
| Frame Construction | Surly Krampus - 100% Surly Chromoly Steel, Natch tubing, double-butted main triangle, trumpet flared tubes, TIG welded, E.D. coated |
|---|---|
| Frame Material | Steel |
| Fork | RockShox 35 Gold RL, 29", 15 x 110mm, 120mm Travel, 51mm offset |
Drivetrain
| Shifters | Shimano Deore XT M8100 |
|---|---|
| Rear Derailleur | Shimano M8100 XT SGS |
| Crankset | Shimano MT511, 30T |
| Bottom Bracket | Shimano MT501, BSA |
| Cassette | SunRace CSMZ800, 11-51t, 12-spd |
| Chain | KMC X12 Anti-Rust |
Brakes
| Brakes | Brake Calipers: Tektro HD-M3520; Brake Levers: Tektro HD-M3520; Rotors: Tektro 180/160, 6-Bolt |
|---|
Cockpit & Contact Points
| Headset | Cane Creek |
|---|---|
| Handlebar | Salsa Rustler 31.8 |
| Stem | ProMax 31.8mm |
| Saddle | WTB Volt |
| Seatpost | Trans X JD-YSP15, 30.9mm, 120mm travel |
Wheels & Tires
| Hubs | (F) Novatec 15x110mm, 32h, 6-bolt / (R) Novatec 12x148mm, 32h, 6-bolt |
|---|---|
| Rims | WTB ST I30 TCS 2.0 |
| Spokes | 14G Black |
| Front Tire | Surly Dirt Wizard 29 x 2.6", 60tpi, Tubeless Ready |
| Rear Tire | Surly Dirt Wizard 29 x 2.6", 60tpi, Tubeless Ready |
| Wheel Size | 29" |
Geometry
Frame measurements by size.
Published frame view
Select an available measurement to locate it on the frame.
All geometry measurements4 sizes · 16 measurements
| Measurement | Small | Medium | Large | X-Large |
|---|---|---|---|---|
| Seat tube | 368 mm | 419 mm | 470 mm | 521 mm |
| Effective top tube | 587 mm | 612 mm | 637 mm | 662 mm |
| Head tube | 90 mm | 100 mm | 110 mm | 120 mm |
| Head-tube angle | 68.4° | 68.4° | 68.4° | 68.4° |
| Seat-tube angle | 72.4° | 72.4° | 72.4° | 72.4° |
| Chainstay / rear center | 435 mm | 435 mm | 435 mm | 435 mm |
| Wheelbase | 1096 mm | 1121 mm | 1147 mm | 1173 mm |
| Bottom-bracket drop | 60 mm | 60 mm | 60 mm | 60 mm |
| Reach | 397 mm | 419 mm | 442 mm | 464 mm |
| Stack | 597 mm | 607 mm | 616 mm | 626 mm |
| Standover height | 776 mm | 803 mm | 832 mm | 861 mm |
| Fork offset / rake | 51 mm | 51 mm | 51 mm | 51 mm |
| Fork length / axle-to-crown | 498 mm | 498 mm | 498 mm | 498 mm |
| Crank length | 165 mm | 170 mm | 170 mm | 175 mm |
| Stem length | 70 mm | 70 mm | 70 mm | 80 mm |
| Handlebar width | 750 mm | 800 mm | 800 mm | 800 mm |
Measurements may vary by configuration, wheel size, or frame setting where noted in the published chart.
Gearing
Lower ratios provide more mechanical advantage for climbing. Higher ratios turn the rear wheel farther with each crank revolution.
Bike-specific inspection checklist 21 checks based on 6 archived component groups Open checklistClose checklist
This checklist uses the archived equipment for this bike. It cannot confirm the condition, service history or later component changes of the example in front of you.
Identity and fit
Follow the full used-bike inspection order →Archived: Surly Krampus Front Suspension - Blue Oyster Coat · Mountain · Published sizes: S, M, L, XL
Frame and fork
Inspect the frame and fork →Archived: Frame: Surly Krampus - 100% Surly Chromoly Steel, Natch tubing, double-butted main triangle, trumpet flared tubes, TIG welded, E.D. coated · Fork: RockShox 35 Gold RL, 29", 15 x 110mm, 120mm Travel, 51mm offset
Suspension
Evaluate the suspension →Archived: Fork: RockShox 35 Gold RL, 29", 15 x 110mm, 120mm Travel, 51mm offset
Drivetrain
Check drivetrain wear →Archived: Shifters: Shimano Deore XT M8100 · Rear derailleur: Shimano M8100 XT SGS · Crankset: Shimano MT511, 30T · Bottom bracket: Shimano MT501, BSA · Cassette: SunRace CSMZ800, 11-51t, 12-spd · Chain: KMC X12 Anti-Rust
Brakes
Inspect the brakes →Archived: Brakes: Brake Calipers: Tektro HD-M3520; Brake Levers: Tektro HD-M3520; Rotors: Tektro 180/160, 6-Bolt
Wheels and tires
Check wheels and tires →Archived: Wheel size: 29" · Rims: WTB ST i30 TCS 2.0 · Hubs: (F) Novatec 15x110mm, 32h, 6-bolt / (R) Novatec 12x148mm, 32h, 6-bolt · Front tire: Surly Dirt Wizard 29 x 2.6", 60tpi, Tubeless Ready · Rear tire: Surly Dirt Wizard 29 x 2.6", 60tpi, Tubeless Ready
Controls and contact points
Archived: Headset: Cane Creek · Handlebar: Salsa Rustler 31.8 · Stem: ProMax 31.8mm · Seatpost: Trans X JD-YSP15, 30.9mm, 120mm travel · Saddle: WTB Volt
Before and during the test ride
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Gallery8 images
Specifications are presented as a reference. Components may vary by market, size, production run, or later manufacturer revisions.



