Stargazer Titanium Frameset

Regular price $2,700.00
Unit price
per 

Titanium frames will begin shipping Q1 2023. Production frames will have dark midnight decals and a matching dark midnight fork.

Introducing our new Stargazer drop bar mountain touring frame in titanium with a steel fork. It's a super high end frame with multi-butted, cold formed oversized custom 3Al-2.5V tubing that stands up to loaded off-road riding without turning into a noodle. We've been riding the sample frames for the last year and it's the bike I reach for more than any other. This is a super limited production frameset, we will have a total of 25 frames split between all the sizes, and at least two of them are spoken for by Tumbleweed employees. This may end up being a one time deal, so if you appreciate the lighter weight, corrosion resistance and dreamy ride quality that titanium offers then this could be a good bike to consider. We will sell these as framesets as well as complete builds, if you are interested in a complete bike please let us know in the notes section at checkout. 

Geometry is the same as the steel frame

  • 3Al-2.5V multi butted titanium tubing, ovalized top tube and down tube
  • Frameset includes titanium frame with steel fork, seat clamp, front and rear thru axles
  • Ti frame saves approximately 2lbs over the steel frame (4.25lb vs 6.25lb for an Extra Medium or 57cm frame)
  • Brushed bare titanium finish with dark midnight logos and a matching dark midnight steel fork (same fork that comes with the steel frameset) 
  • 29x2.6” or 27.5x3.0” tire clearance with machined titanium chainstay yoke
  • 31.6mm seatpost (compatible with internally routed dropper posts)
  • 44mm headtube for ZS44 upper headset cups and EC44 lower cups, 30mm crown race with stock fork
  • Threaded bosses for full size racks and fenders front and rear, three sets of bottle bosses on main triangle, triple bottle bosses on each fork leg
  • 148x12mm frame spacing and 110x15mm fork spacing
  • 160/180mm flat mount disc brakes front and rear
  • 1x drivetrain specific frame, 38t max chainring with 52mm chainline
Reviews
Frame Material 3Al-2.5V multi butted titanium tubing, ovalized top tube and down tube
Rack/Fender Compatibility Rack and fender compatible, three bottle mounts on frame triangle
Fork Unicrown Chromoly steel with 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 29x2.6"/27.5x3.0"
Headtube 44mm I.D.
Headset ZS44 upper, EC44 lower
Bottom Bracket 73mm BSA threaded
Rear Axle (Included) 148x12mm Boost
Seatpost Diameter 31.6mm
Dropper Seatpost Compatibility Internally routed for dropper post
Seat Clamp (included) 35mm
Drivetrain Compatibility 1x drivetrain specific, not designed to accomodate front derailleur
Brake Compatibility 160/180mm flat mount front and rear
Fork Axle to Crown 440mm
Fork Steer Tube Length 350mm
Chainring Clearance 1X Boost, 38 tooth max
Frame Geometry Small Medium Extra Medium Large Extra Large
Effective Top Tube Length535mm555mm575mm595mm615mm
Seat Tube Angle73.5 degrees73 degrees73 degrees72.5 degrees72.5 degrees
Seat Tube Length C-T380mm430mm460mm490mm545mm
Head Tube Length115mm140mm175mm200mm230mm
Head Tube Angle69 degrees69 degrees69 degrees69 degrees69 degrees
Fork Offset55mm55mm55mm55mm55mm
Chainstay Length450mm450mm450mm450mm450mm
Bottom Bracket Drop63.5mm63.5mm63.5mm63.5mm63.5mm
Stack574mm597mm630mm653mm672mm
Reach365mm372mm382mm389mm403mm
Standover Height*750mm784mm815mm840mm875mm
* At center of top tube with a 29x2.25" tire measuring 730mm in diameter.
Tumbleweed Stargazer Standard Build
(Parts subject to change based on availability)
Part Description 
FrameStargazer Titanium
ForkSteel Unicrown110mm Thru Axle Unicrown
HeadsetCane Creek 40ZS upper, EC lower, 30mm Crown Race
CranksetRaceFace AeffectBlack, Cinch Direct Mount
ChainringRaceFaceBlack, 32t Direct Mount, Steel
Bottom BracketRaceFaceBSA Threaded
Front HubDT Swiss 350Black, 110mm Thru Axle 32 hole
Rear HubDT Swiss 350Black, 148x12mm 32 hole, SRAM XD driver
CassetteSRAM GX Eagle10-52 tooth
Shifter Conversion KitRatio Technologies 
Rear DerailleurSRAM GX EagleLunar
RimsRaceFaceArc 30 Offset
SpokesSapim RaceBlack 2.0/1.8 w/Brass nipples
Brake LeversSRAM Rival 22Black
Brake CalipersTektro MD-c550Black
Cables and HousingJagwire Pro CompressionlessStainless Cables, Black Housing
Disc Brake Rotor AdaptorsTektro 
Brake RotorsSRAM Centerline180mm front, 160mm rear
TiresMaxxis Ikon29x2.35 EXO 3C TR
ChainSRAMGX Eagle
Bar TapeCamp and Go Slow Rattlerextra long
StemZoomBlack 31.8mm 4 bolt
HandlebarPNW Coast52cm Black
SeatpostPNW Loam dropper postBlack, 31.6mm Diameter, 125mm travel
SaddleWTB Pure Black, Steel Rails
Tubeless Parts Tubeless Sealant, Valves and Tape
Headset Spacers Black, Aluminum
How can I run 11 speed SRAM road shifters with a 12 speed SRAM Eagle drivetrain?
A company called Ratio Technologies produces a kit that converts SRAM 11 speed road shifters to work seamlessly with 12 speed mountain derailleurs, we use their kit on our complete builds.
Can I run flat bars on the Stargazer?
Yes, you'll just need to take into account that the frame has a reach that is optimized for drop bars, you'll likely need a long stem to run flat bars.
My flat mount brake adaptors only have the option for 140mm or 160mm, what setting do I use for the Stargazer?
For the rear brake,if you want to run 160mm rotors, mount the caliper directly to the brake mount. Use the 160mm rear brake adaptor to run 180mm rotors. For the front brake, use the 140mm setting on your adaptor for 160mm rotors, and the 160mm setting for 180mm rotors.