The bike that started it all the plus-size movement that is. The Krampus features Surlys Gnot-Boost rear hub spacing of 145mm; compatible with Boost 148 x 12mm thru-axle, 142 x 12mm thru-axle and 135mm quick-release hubs. Rolling on 29 x 3 tires, this bike can get you over just about anything you point it at.

• 100% Surly Chromoly steel frame and fork; double-butted main triangle and 44mm headtube
• The tubeset uses Surly custom trumpet tubes for greater stiffness and durability
• Adjustable rear dropouts with 145mm Gnot-Boost spacing. Works with 142, 148 12mm thru-axle, as well as 135mm with 10/12 washer
• Internal dropper seatpost routing
• E.D. coated for an added layer of internal frame protection
• Clearance for 29 x 3″ tires

BUILD KIT:

• Frame : 100% Surly Chromoly Steel, Natch tubing, double-butted main triangle, trumpet flared tubes, TIG welded, E.D. coated
• Fork : RockShox 35 Gold RL, 15 x 110mm, 120mm Travel
• Rear Derailleur : Shimano Deore XT RD-M8100
• Cassette/Cog : OE 12-spd, 11-51t
• Chain : KMC X12 Anti-Rust
• Crankset : Shimano Deore M6100
• Bottom Brcket : BSA Threaded Shimano Hollowtech II
• Shifter(s) : Shimano Deore XT SL-M8100
• Brakes : Tektro Gemini HD-M520
• Rotors : 180mm front & 160mm rear
• Headset : Cane Creek
• Stem : ProMax, 31.8
• Handlebar : Salsa Rustler 31.8
• Seatpost : TranzX JD-YSP15, 30.9, 120mm travel
• Saddle : WTB Volt
• Wheels : WTB ST i30 TCS 2.0, Novatech TA Hubs, Tubeless Ready
• Tires : Surly Dirt Wizard 29 x 2.6″, 60tpi, Tubeless Ready

SIZING:Surlyrecommends the following sizes based on rider height:

• SM 5’4″ – 5’8″
• MD 5’7″ – 6′
• LG 5’11” – 6’3″
• XL 6’2″ – 6’6″