Description
The Sour Crumble. A tasty bit of trail bike, made even tastier. Modern downcountry? Trail bike? The one for anything? The one for everything?! Yeah probably.
Nestled comfortably into trail mountain bike territory, the Sour Crumble is a fantastic and well-rounded mountain bike built for 120-140mm travel and everything from downcountry to long alpine descents. Truly a multi-talented platform.
We love the Crumble for its mild manners and shred-ability. We’ve seen people ride the Crumble in bike parks and bike races, and watched friends of ours who are much better at MTBs than we are just absolutely shred the wheels off this thing. You just love to see it!
In 2022 we updated the geometry to “keep up” with modern trends, but even then, we had very little work to do. 66,5° headtube and 425mm chainstays pair with a 462mm reach in size medium. If those numbers mean nothing to you, don’t worry; just imagine I said “bikes are super cool” a bunch of times.
All of this, built by hand in Saxony!
This frame is from before the Pre-August 2024 Crumble version.
The geometry is slightly different as is the cable routing and frame details.
By The Numbers:
Headtube: 44mm, ZS44/EC44
Bottom bracket: 73mm BSA threaded
Rear spacing: 148x12mm Boost thru axle
Seatpost: 31.6mm diameter (dropper ready)
Rear Brake: PM160 disc brake standard
Fork travel: 120mm – 140mm
Wheel size: 29″
Tire clearance: up to 2.5“
Tubing: Custom drawn, multiple butted, partly heat treated SOUR CrMo (we love steel)
Bonus facts and features:
New 66.5° headtube angle (with a 531mm fork)
Yoke, gusset, and post mount designed in-house specifically for the Crumble
Stealth dropper post cable routing
Maximum chainring size: 36t round or 34t oval