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Surly Krampus Ops 29+ 2016 Fat Bike - Mountain Bike

What are the delivery costs?

We offer Free UK Mainland Delivery on all orders over £20. Products shipped to outlying UK regions are excluded from free shipping.

Standard delivery is normally 2 - 5 working days.

Please view our delivery page for full information on UK and international delivery costs.

There is no need to for us to immerse you once again in the bath that is the Krampus, or 29+ for that matter.

The "Ops" in Ops here at Surly is short for "Optional" and to us that means that this build doesn't just have some fancy new trim package, but is spec'd and in this case designed a bit differently to offer the user "optional" utility. Other utility. The Krampus Ops comes with a Surly OD crank, giving you far more possibilities for drivetrain (you can convert it to an off-set double by adding one of our chainrings and then using a direct mount standard front derailleur and an adapter to give you optimal tire clearance). So a few more options there.

The Krampus Ops also features our Modular Dropout System (MDS), allowing you to change up your drivetrain according to needs. Frames ship with MDS dropouts in 10mm track end singlespeed, standard vertical with derailleur hanger and a 142 x 12mm thru-axle versions. So, you may do what you will. Again, with all these options how will you ever get out of your house? You'll manage.

Note: Krampus Ops Bikes come fitted with standard vertical dropouts ONLY

Krampus hub spacing is standard 100mm front and 135mm rear. It's got clearance for disc rotors up to 185mm and is designed to run a high direct mount standard front derailleur. For best chain/tire clearance, we recommend either a Surly O.D. 2x crank (which comes on the complete)(oh the options) or a 1x system. Other brands 2x cranks will work but may cause some chain-on-tire rub in the easiest gear combo.

Enough options for you? Probably not, but we're not machines. Now go get on and get off.


Frame Surly Krampus, Surly 4130 CroMoly steel. Main Triangle TIG-welded, custom butted. Sweet CS Yoke.
Forks Surly Krampus, TIG-welded custom tapered butted 4130 CroMoly, 100-120mm suspension corrected, 1-1/8" steerer tube, 203mm disc brake clearance
Headset Cane Creek, 40 series for 44mm
Handlebars Salsa, Salt Flat
Stem Kalloy, 31.8mm. 60/70/80/90mm length
Shifters 10 Speed Shimano SLX, 10-speed RH
Front_Mech MRP 1x guide. BB mount, yep
Rear_Mech Shimano SLX, Black
Chainset Surly, O.D. 33
Bottom_Bracket Surly, O.D. 33
Chain KMC x10, Silver
Cassette SRAM GG-1070, 10-speed. 11-12-14-16-18-21-24-28-32-36t
Front_Brake Avid BB7, 180 HS rotors
Rear_Brake Avid BB7,160 HS rotors
Rims Surly Rabbit Hole 29+, 700c x 50mm w/holes
Front_Hub Surly Ultra New Disc, 32h. 6-bolt disc. Black
Rear_Hub Shimano FH-M529, 32h. Disc. Black
Spokes DT Swiss, 14g
Tyres Surly Knard 29 x 3", 27tpi FrontSurly Knard 29 x 3", 27tpi Rear

Occasionally, without notice, manufacturers change product design and/or specifications.