Frames are in store now.

Tumbleweed Bikes has a well deserved reputation for building some of the highest quality steel bikepacking and touring framesets available. Their choice of top quality steel tubing is complimented by thoughtful and innovative design features.

Their two previous frame-sets were the Prospector (a Rohloff Specific flat bar frame) and the Stargazer (A dropbar specific touring frame), both were hugely popular bikes for us here at the shop and both won coveted "Bikepacking Bike of the Year Awards" from Bikepacking.com.

Tumbleweed describes their new model like this "The Sunliner is our new flat bar, mountain touring bike. One might look at it and say it’s a flat bar Stargazer. Others may look at it and say it looks like a Prospector but isn’t optimized for a Rohloff. While there are certainly similarities with both those models, we made some specific design decisions that further differentiate it from both.

• The Sunliner is optimized for flat bars with a longer top tube and tall head tube.
• It fits even bigger tires than the Stargazer with clearance for 29 x 3.0 tires.
• Unlike the Prospector which is 135mm rear spacing, the Sunliner is Boost hub spacing front and rear. Sunliner is designed for for modern mechanical drive trains (1x specific) and modern mountain bike wheels.
• It’s quite a bit less expensive to build a complete Sunliner compared to a Prospector with Rohloff too!
• As a flat bar non suspection corrected frameset the Sunliner has the largest front triangle and frame bag space of any of our bikes.

Frames ship with: frame, fork, through axles, seatpost collar. Does not include headset, but we can fit one for no charge if purchased with frame.

Specifications:

Frame Specifications
• Sizes: Small - Medium - Large - Extra Large
• Tubing: Heat Treated, size specific Cromoly tubing. Oversized
triple and quad butted main triangle with integrated gussets
• Colors: Forest Green or Rhubarb (dark pink). Both with gold
Tumbleweed graphics
• Tire Clearance: Optimized for 29x2.6”, clearance for up to 29 x 3
(Tested with WTB Ranger tire on 40mm internal rim width)
• Head Tube Diameter: 44mm I.D. for ZS44 upper, EC44 lower cups
• Bottom Bracket: 73mm BSA threaded
• Spacing: Boost 148mm x 12mm thru axle (included)
• Seat Post Diameter: 31.6
• Seat Collar Diameter: 35mm (included)
• Dropper routing: External routing on down tube with internal
routed seat tube
• Driveline: 1x drivetrain specific. Not designed to accommodate a
front derailleur
• Chainring Clearance - 38 tooth max
• Brake Compatibility - 180mm or 160mm IS mount, front and rear
with external cable routing
• H20 mounts - One set on seat tube, one set on top of downtube,
one 3 pack mount under down tube
• Rack and Fender mounts

Fork Specifications
• Tire Clearance - 29 x 3 (Tested with WTB Ranger tire on 40mm
internal rim width)
• Spacing: Boost mountain - 110x15mm thru axle (included)
• 3 pack mounts angled rearward
• Low rider mounts
• Upper fork crown rack mounting points
• Center hole on fork crown
• Generator wiring port on lower right leg
• Rack & Fender mounts
• Same fork specifications as Stargazer - 440mm Axle to Crown
with 55mm offset