Description
Fast and agile, but stable enough for when the road turns into a “road”.
The sibling to our Purple Haze, the Sour Clueless is our most all-road platform designed for long days and multi-surface adventures. All the “go” and none of the bloat, the Clueless is a pared down mile-muncher.
The Clueless is your best friend for long days in the saddle on mixed surfaces. Whether those surfaces are gravel, asphalt, or just the roads between coffee stops, the Clueless is game. Fenders and lights, this bike will take you to the end of the world, or the office before 8am. Knobby tires and fast wheels and you can take on any ridiculous gravel route your chaotic friend has dreamt up.
The Clueless strikes the balance between being fully-featured while maintaining a beautiful silhouette.
Steel may be the “original” material to build bikes, but that doesn’t mean it has to be old fashioned. We have all the modern conveniences including internal cable routing, tapered headtube, and a threaded bottom bracket.
Our cable routing jumps out of the frame around the bottom bracket, out of sight, and then continues to the back of the bike externally. Not only does this make service easier, it also saves you a headache or two routing the rear brake and derailleur!
And as you’d expect, the Clueless gets all the smart details to run a rear rack, fenders, all the bottles, and even a fun rack if you purchase the frame with our aluminium adventure fork!
Geometry
Specification
Parts
Wheelset built by hand with Duke Worldrunner 25 rims and Duke Bad Boy or Bitex hubs.
Complete Easton EA70 cockpit:
XS — 70mm stem; handlebar 400mm 16° flare; seat post 27,2x350mm; Easton bartape
S — 90mm stem; handlebar 400mm 16° flare; seat post 27,2x350mm; Easton bartape
M-L — 100mm stem; handlebar 420mm 16° flare; seat post 27,2x350mm; Easton bartape
XL-XXL — 110mm stem; handlebar 440mm 16° flare; seat post 27,2x350mm; Easton bartape
Saddle SQ Lab 611 Ergowave XS-L 140mm XL-XXL 150mm
Acros headset
Schwalbe G-One Overland 700×40 tires
Please note: all our complete bikes are shipped tubeless with Dynamics Sealant
Handmade Sour Bicycles CrMo frame featuring heat treated, multi-butted tubing that’s ED-Coated for rust-proofing.
Our dropouts are designed in-house, in Dresden and have a replaceable derailleur hanger.
The seat clamp is designed in-house and is integrated into the frame. Should it ever fail, the frame can be professionally modified to use a traditional clamp.
By the Numbers
Headtube: EC34/ EC44 tapered headtube
Bottom bracket: 68mm T47 threaded bottom bracket
Axle: 12mm x 142mm thru axle
Seat post: 27.2mm
Brake standard: FM160 Direct. More info here.
Wheel size: Size XXS-S aret 650b optmized (bb height), M-XXL fit 700c
Tire clearance: up to 42mm
Tubing: Custom drawn, multiple butted, partly heat treated SOUR CrMo (we love steel)
UDH/Transmission Compatible
Bonus facts and features:
Fender and rack mounts
Recommended tire size 35mm – 42mm
external downtube cable routing
brake hose routing internal optional
Three water bottle braze-on’s
Low standover height
Ovalized lower seattube section for better power transfer
(go fast)
Ovalized toptube for comfort and precise steering
(don’t crash)
Clueless Fork
The perfect fork to pair with a pack-light-travel-fast Sour Clueless build. We love the versatility of our Clueless frames, and this fork is just the cherry on top. Cargo cage mounts for those extra long rides, but minimal enough for all the day-to-day grind. Perfect.
Pictured is a 650b wheel. The fork is designed for 700c but can accept both.
Specs
Maximum Tire Width: 45mm
Axle to Crown Length: 402mm
45mm Rake
Tapered Steerer Tube 1 ½“ – 1 ⅛“
Thru-axle 12mm x 100mm
Material UD Carbon
3 Cargo Cage Eyelets on Fork Legs (max. 3.5 kg per side)
Flat-mount Brake Mount 140/160mm
Fender Mounting Possible
Weight With Full Steerer and Axle: ±515g
Below are the frame and fork weights for each size of the Sour Clueless. These weights do not include powdercoating, but please keep in mind that your chosen powdercoat may be heavier than the average coating we use. Fades, gradients, and metallic colours can weigh more than single solid colour powdercoat. If you are interested the final weight, please get in touch. Weights are averaged over three frames per size. We apply an inside wax coating before shipping the frame to your door that will add additional weight.
Clueless Size XS = 2281g
Clueless Size S = 2330g
Clueless Size M = 2394g
Clueless Size L = 2510g
Clueless Size XL = 2630g
Clueless Size XXL = 2750g
Clueless Carbon fork = 515g
*All weights averaged with 3 frames per size (±50g frame, ±20g fork)
Included with your frame
Included with your Clueless frame or frameset is all the grommets and small parts to run any cabling you wish and a derailleur hanger. You get a rear thru-axle of course, and if you’re ordering a frameset, you get a front axle with your fork as well. Headsets are only included if you add one to your order.
1×12 Shimano GRX
Rear derailleur, Shimano GRX RX822
Crankset, Shimano GRX FX-RX610, 172,5mm with 40T chainring
Shifters, Shimano GRX RX610 flatmount, and SM-RT64 rotors
Cassette, Shimano CS-M7100, 10-51t and a CN-M6100 chain
1×13 SRAM Rival XPLR AXS E1
Rear Derailleur, SRAM Rival XLPR E1 1×13
Crankset Rival AXS 172.5mm, 40t Chainring, Incl. Sram bottom bracket
Shifters, SRAM Rival AXS E1, Centerline X Rotors, 160mm
Cassette, XG-1351, 10-46t, and a CN-RIV-E1 chain
Battery and charger included
