Fat Bike Frame Bag


This full-size frame bag incorporates the best features of our classic Ranger frame bag. This bag works great on fat bikes with a curved top tube. It is a size-for-size match for 2017-2022 model years of Salsa's Carbon Mukluk, though also works great on other fat bikes with a curved top tube as well, such as 9zero7's Lynx, Tundra, and Whiteout, among many others. 

Made in the USA with domestic and imported materials.

These frame bags are manufactured and distributed by Revelate Designs and have no affiliation with Salsa Cycles. Salsa Cycles is a trademark of Quality Bicycle Products. 

  • Revelate exclusive RevX-PAC panels that are 2 times as abrasion resistant as standard VX material.
  • Zipstretch ™ construction - Pairs a bomber, wetsuit style molded-tooth zipper with our exclusive stretch Cordura panels that reduce zipper stress when closing bag.
  • Industry leading #10 Molded tooth zippers with urethane coated tape are basically impervious to dirt and grit that destroy more commonly used water resistant coil zippers.
  • Exit port in main compartment for hydration tube or wires.
  • Zippered left side pocket on sizes SM-XL. 
  • Bags feature one main compartment with vertical divider.
  • Expanding taper front section for increased volume at head tube.
  • Stretch mesh internal pocket.
  • Front top tube attachments accommodate top tube packs.

This frame bag was designed around the 2017-2022 year models of the Salsa carbon Mukluk. For those models, the frame size correlates to the frame bag size; a small fits a small carbon Mukluk. For other makes and models, we recommend using a ruler to measure the opening of the main triangle. The top tube curve on the SM bag is about 1.5", and the curve on the XL is about 1.25", and the following measurements can be referenced:

Dimensions (in.)
Top Tube 13.50 19.75
Seat Tube 12.00 17.50
Down Tube 19.00 24.75

SM: 11 oz
MD: 12 oz
LG: 13 oz
XL: 15 oz


RevX-Pac Fabric: Dimension Polyant VX-21 with proprietary abrasion resistant finish; 1050 denier domestic ballistics nylon; 420 denier diamond ripstop lining; closed cell foam padded tube sections.

This Collection