Frames are in stock now, lead times on complete builds is 3-4 months due to a large build queue.
The Prospector is our timeless and rugged expedition mountain touring bike, designed around the stalwart Rohloff Speedhub drivetrain. It’s a bike designed to be reliable, tough and field serviceable in the harshest of conditions. In the face of ever changing bicycle part standards and the integration of exotic materials, the Prospector is built to last and to buck the trend of short product cycles and throw away upgrade culture. We believe that the most important features of a reliable expedition bike are a comfortable fit, a tough frame/fork, strong wheels, reliable components, and as much tire/mud clearance as possible.
While the Prospector is derailleur compatible, it was designed specifically around the Rohloff SPEEDHUB, a 14 speed internally geared drivetrain that has proven itself to be supremely dependable and capable. We've been using Rohloff hubs on our tours for over a decade and tens of thousands of miles through sand, mud, snow and at elevations of up to 18,000' without issue.
The Prospector has several features that separate it from other expedition bikes. A Phil Wood eccentric bottom bracket offers half an inch of bottom bracket height adjustability, custom cast dropouts work seamlessly with the Rohloff hub, and a hollow chainstay yoke maximizes every millimeter of mud and tire clearance to round out a complete package that can take you anywhere in the world with confidence.
Complete Bike Purchase Process
We will build complete bikes in the order that deposits are received. Our standard build as shown is $4600, some upgrades are possible, but part availability has been a challenge. We will contact you to finalize the build spec after you place your deposit, and the invoice for the balance due will be sent when your build starts.
|Frame Material||Heat treated size specific Chromoly tubing, oversized triple and quad butted front triangle with integrated gussets|
|Rack/Fender Compatibility||Rack and fender compatible, three bottle mounts on frame triangle|
|Fork||Unicrown Chromoly steel with 135mm quick release or 110x15mm thru axle (thru axle included), upper and lower rack mounts, fender mounts, triple bottle cage mounts on fork legs, internal dynamo wire routing|
|Max Tire Clearance||26x4.0", 27.5x2.8-3.8˝ and 29 x 2.1-3.0˝, individual tire and rim combos affect tire clearance|
|Headset||Recommend EC44 lower cup. ZS44 upper cup.|
|Bottom Bracket||73mm, threaded English (1.37˝ x 24t) Phil Wood Eccentric Insert. M8 cupped point set screws (8mm x 1.25 thread pitch)|
|Rear Axle||135mm quick release|
|Dropper Seatpost Compatibility||Internally routed for dropper post|
|Seat Clamp (included)||35mm|
|Drivetrain Compatibility||Rohloff or 1x derailleur drivetrain recommended|
|Brake Compatibility||51mm I.S. disc caliper mounts, 180mm max rotor size, minimum 160mm rotor|
|Fork Axle to Crown||483mm|
|Fork Steer Tube Length||300mm|
|Rear dropouts||Vertical with integrated non-driveside Rohloff OEM slot and replaceable derailleur hanger, 135mm quick release or bolt-on hub spacing compatibility; features threaded M5 and M6 eyelets for fenders and racks|
|Chainring clearance||1X Boost, 1X Super Boost|
|Crank clearance||Chainstay width is 140mm, crank arms must have 144mm inner width, 24mm spindle recommended|
|Frame Geometry||Small||Medium||Large||Extra Large|
|Effective Top Tube Length||590mm||610mm||630mm||650mm|
|Seat Tube Length||15"||17"||19"||21.5"|
|Head Tube Angle||69.5°||69.5°||69.5°||69.5°|
|Seat Tube Angle||73°||73°||73°||73°|
|Bottom Bracket Drop*||58.5mm||58.5mm||58.5mm||58.5mm|
|Head Tube Length||110mm||130mm||145mm||160mm|
|Recommended Rider Height||5'2"-5'7"||5'6"-5'10"||5'10"-6'2"||6'1"-6'7"|
|Recommended Rider Saddle Height||63-69cm||68-73cm||74-81cm||80-88cm|
|Frame||Prospector||Desert Sage, Midnight Blue|
|Fork||Steel Unicrown||135mm Quick Release or 110mm Thru Axle|
|Headset||Cane Creek 40||ZS upper, EC lower, 30mm Crown Race|
|Crankset||RaceFace Aeffect||Black, Cinch Direct Mount|
|Chainring||RaceFace||Black, 32t Direct Mount, Steel|
|Bottom Bracket||RaceFace||BSA Threaded|
|Front Hub||Schmidt SON28||Black 110mm Thru Axle 32 hole Dynamo|
|Rear Hub||Rohloff SPEEDHUB||Black, 32 hole, Quick release 16t cog|
|Rims||Tumbleweed||Black 27.5" 40mm Internal Width|
|Spokes||Sapim Race||Black 2.0/1.8 w/Brass nipples|
|Brake Levers||Avid FR5||Black|
|Brake Calipers||Avid BB7||Black|
|Cables and Housing||Jagwire Pro Compressionless||Stainless Cables, Black Housing|
|Disc Brake Rotor Adaptors||Tektro||20mm front and rear|
|Front Rotor||SRAM Centerline||180mm 6 bolt|
|Rear Rotor||Rohloff||180mm 4 bolt|
|Shifter||Rohloff||OEM grip shifter|
|Grips||Ergon GP1||Black, Rohloff Shifter Compatible|
|Stem||Zoom||Black 31.8mm 4 bolt|
|Handlebar||Tumbleweed Persuader||Black 800mm|
|Seatpost||Kalloy||Black, 31.6mm Diameter, 410mm Length|
|Saddle||WTB Rocket Wide||Black, Steel Rails|
|Tubeless Parts||Tubeless Sealant, Valves and Tape|
|Headset Spacers||Black, Aluminum|
The Prospector was designed specifically around the 14 speed Rohloff internally geared drivetrain, a fully sealed transmission with a wide 526% gear range that has been proven to be reliable in the harshest of environments, with many reaching more than 100,000 miles.
The Prospector is built around a 73mm eccentric bottom bracket made for us by Phil Wood, to allow for easy chain tension adjustments and provide up to 1/2" of bottom bracket height adjustment to enable various wheel/tire combinations.