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.
What's new with the current batch of Prospector V2 frames?
We added 10mm to the effective top tube length on all sizes, to work even better with the swept back Persuader bar that didn't exist when we first designed the Prospector. We also added a 150x15mm thru axle fork option.
Prospector Fork Options
- 1. 135mm Quick Release fork with rear disc spacing: The original fork that we offered with the Prospector, uses the same spacing as the frame, allowing you to run two rear wheels on the bike, useful if you run the bike singlespeed and want to run two different gear ratios. Wide hub flanges produce an incredibly strong wheel with great spoke Triangulation (we dont stock this Option, if you want a 135 mm fork get in contact)
- 2. 110x15mm Boost thru axle: Allows you to swap between rigid and suspension forks without needing to build a new front wheel. Lots of hub options, but narrower hub flanges don't work well with fatbike rims that have offset spoke holes, they produce a wheel with little to no spoke triangulation, but work great with non offset rims.
- 3. 150x15mm thru axle. The modern fatbike front hub standard. Lots of hub options, wide hub flanges for great spoke triangulation and super strong wheels. You can swap this fork with something like a RockShox Bluto in 80-120mm of travel.
Rohloff
- 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.
Phil Wood
- 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.
Specs:
- 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 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
- Headtube 44mm I.D.
- 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
- Seatpost Diameter 31.6mm
- 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
Pictures of complete bike and frame just for showing Purpose! Scope of delievery: 1x Prospector Frame, 1x Prospector fork, 1x thru-axle front, 1x seat clamp, 1x Phil Wood eccenter.
Product safety information
Manufacturer information:
Tumbleweed Bicycle Co.
121 E 38th Street, Suite 106
Idaho
Garden City, Vereinigte Staaten, 83714
info@tumbleweed.cc
https://tumbleweed.cc/
| |
Small |
Medium |
Large |
X-Large
|
| Sitzrohrlänge (Mitte - Oberkante) / Seat Tube Length (C-T) |
15" |
17" |
19" |
21,5" |
| Oberrohrlänge / Top Tube Length (effective) |
600 |
620 |
640 |
660 |
| Steurohrwinkel / Head Angle (°) |
69,5° |
69,5° |
69,5° |
69,5° |
| Sitzrohrwinkel / Seat Angle (°) |
73° |
73° |
73° |
73° |
| Steurohrlänge / Headtube Length |
110 |
130 |
145 |
160 |
| BB Drop* |
58,5 |
58,558,5 |
58,5 |
58,5 |
| Kettenstrebenlänge* / Chain Stay Length* |
456 |
456 |
456 |
456 |
| Fork Rake |
53 |
53 |
53 |
53 |
| Radstand / Wheelbase |
1128 |
1149 |
1170 |
1191 |
| Überstandshöhe / Standover** |
772 |
806 |
837 |
871 |
| Reach |
414 |
419 |
444 |
461 |
| Stack |
608 |
626 |
640 |
655 |
| Empfohlene Körpergröße*** / Recommended Rider height*** |
158-170 |
168-178 |
178-188 |
185-200 |
| Empfohlene Sattelhöhe*** / Recommended Saddle height*** |
63-69 |
68-73 |
74-81 |
80-81 |
*Gemessen mittig des Tretlagergehäuses / measured at the center off the bottom bracket Shell.
**Mittig am Oberrohr bei 27,5 x 2.8" Reifen / At center of top tube with a 27.5x2.8" tire measuring 730mm in diameter.
***Herstellerangabe
Alle Angaben in mm sofern nicht anders angegeben / All measurements in mm unless otherwise stated
Irrtümer vorbhalten / Errors excepted
