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Surly Krampus Rigid - First Loser

Original specifications: 29" wheels · geometry for 4 published sizes.

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At a glance

Model year
Not published by manufacturer
Category
Mountain
Original MSRP
$1,999.00
Sizes
S, M, L, XL
Colors
First Loser
Geometry
4 manufacturer sizes
In this record
22 specifications · 8 archived images · original MSRP · geometry
Archive ID
900000885
Original buildSteel · 29"

Manufacturer catalog

Published sizes and colors

4 sizes · 1 color

Manufacturer-published sizes and colors; availability and exact size/color pairings may vary by market or production run.

Published sizes

SMLXL

Published colors

First Loser

Frameset

Frame ConstructionSurly Krampus - 100% Surly Chromoly Steel, Natch tubing, double-butted main triangle, trumpet flared tubes, TIG welded, E.D. coated
Frame MaterialSteel
ForkSurly Krampus - 100% Surly Chromoly Steel, Natch tubing, double-butted main triangle, trumpet flared tubes, TIG welded, E.D. coated
Fork MaterialSteel

Drivetrain

ShiftersShimano M6100 Deore
Rear DerailleurShimano Deore RD-M6100, 12-speed
CranksetShimano Deore FC-MT510-1, 30t
Bottom BracketShimano MT501, BSA
CassetteSunRace CSMZ800, 11-51t, 12-spd
ChainKMC X12 NP/BK

Brakes

BrakesBrake Calipers: Tektro HD-M275; Brake Levers: Tektro HD-M275; Rotors: Tektro 180/160, 6-Bolt

Cockpit & Contact Points

HeadsetCane Creek 15
HandlebarSalsa Rustler without logo
StemProMax 31.8mm
SaddleWTB Volt 142
SeatpostPromax 30.9mm

Wheels & Tires

Hubs(F) Novatec 15x110mm, 32h, 6-bolt / (R) Novatec 12x148mm, 32h, 6-bolt
RimsWTB I40 TCS
Spokes14G Black
Front TireSurly Dirt Wizard 29 x 3", 60tpi, Tubeless Ready
Rear TireSurly Dirt Wizard 29 x 3", 60tpi, Tubeless Ready
Wheel Size29"

Geometry

4 sizes · 16 measurements

Frame measurements by size.

All geometry measurements4 sizes · 16 measurements
MeasurementSmallMediumLargeX-Large
Seat tube368 mm419 mm470 mm521 mm
Effective top tube585 mm610 mm635 mm660 mm
Head tube90 mm100 mm110 mm120 mm
Head-tube angle69°69°69°69°
Seat-tube angle73°73°73°73°
Chainstay / rear center435 mm435 mm435 mm435 mm
Wheelbase1087 mm1113 mm1138 mm1164 mm
Bottom-bracket drop65 mm65 mm65 mm65 mm
Reach404 mm426 mm448 mm470 mm
Stack593 mm602 mm612 mm621 mm
Standover height770 mm797 mm825 mm853 mm
Fork offset / rake47 mm47 mm47 mm47 mm
Fork length / axle-to-crown483 mm483 mm483 mm483 mm
Crank length165 mm170 mm170 mm170 mm
Stem length70 mm70 mm70 mm80 mm
Handlebar width750 mm800 mm800 mm800 mm

Measurements may vary by configuration, wheel size, or frame setting where noted in the published chart.

Gearing

Chainring ÷ rear sprocket

Lower ratios provide more mechanical advantage for climbing. Higher ratios turn the rear wheel farther with each crank revolution.

All published sizes30T · 11–51T · 12-speed
Lowest0.59:1 Highest2.73:1 Total range464%
Campaign

Parts & serviceability

Find replacement parts

Original specifications
Cassette · Original
SunRace CSMZ800, 11-51t, 12-spd
Brake pads · Original
Brake Calipers: Tektro HD-M275; Brake Levers: Tektro HD-M275; Rotors: Tektro 180/160, 6-Bolt
Bottom bracket · Original
Shimano MT501, BSA
More parts (6)
Saddle · Original
WTB Volt 142
Crankset · Original
Shimano Deore FC-MT510-1, 30t
Rear derailleur · Original
Shimano Deore RD-M6100, 12-speed Search: Shimano RD-M6100 rear derailleur
Shifters · Original
Shimano M6100 Deore Search: Shimano Deore 12-speed shifter
Handlebar · Original
Salsa Rustler without logo
Seatpost · Original
Promax 30.9mm
Retailer offers · Affiliate links

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Bike-specific inspection checklist 20 checks based on 5 archived component groups Open checklistClose checklist
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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.

Archived: Surly Krampus Rigid - First Loser · Mountain · Published sizes: S, M, L, XL

Archived: Frame: Surly Krampus - 100% Surly Chromoly Steel, Natch tubing, double-butted main triangle, trumpet flared tubes, TIG welded, E.D. coated · Fork: Surly Krampus - 100% Surly Chromoly Steel, Natch tubing, double-butted main triangle, trumpet flared tubes, TIG welded, E.D. coated · Steel

Archived: Shifters: Shimano M6100 Deore · Rear derailleur: Shimano Deore RD-M6100, 12-speed · Crankset: Shimano Deore FC-MT510-1, 30t · Bottom bracket: Shimano MT501, BSA · Cassette: SunRace CSMZ800, 11-51t, 12-spd · Chain: KMC X12 NP/BK

Archived: Brakes: Brake Calipers: Tektro HD-M275; Brake Levers: Tektro HD-M275; Rotors: Tektro 180/160, 6-Bolt

Archived: Wheel size: 29" · Rims: WTB i40 TCS · Hubs: (F) Novatec 15x110mm, 32h, 6-bolt / (R) Novatec 12x148mm, 32h, 6-bolt · Front tire: Surly Dirt Wizard 29 x 3", 60tpi, Tubeless Ready · Rear tire: Surly Dirt Wizard 29 x 3", 60tpi, Tubeless Ready

Controls and contact points

Archived: Headset: Cane Creek 15 · Handlebar: Salsa Rustler without logo · Stem: ProMax 31.8mm · Seatpost: Promax 30.9mm · Saddle: WTB Volt 142

Before and during the test ride

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Gallery8 images

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Specifications are presented as a reference. Components may vary by market, size, production run, or later manufacturer revisions.

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