Gravel Tandem
Explore new roads. The fun begins when the pavement ends. Take it camping in the mountains. Race it in events. Discover the quieter routes near home or afar.
Bike Specs
Frame and Fork Material: 3AL-2.5V Titanium
Tire Clearance: 650b x 76mm (27.5 x 3.0″), 700c x 60mm (29 x 2.35″)
Thru Axles: 148mm x 12mm rear, 110mm x 15mm front
Head Tube: 44mm (fits EC44 or ZS44 headsets)
Bottom Bracket: front eccentric front; rear 386EVO BB shell
Seatpost Diameters: front 28.6mm (fits standard 1 1/8″ stems) or 31.6mm (for longer stoker stems); rear 31.6mm
Disc Mount: front 203mm post-mount; rear IS mount with 203mm Post-mount adapter
Framesets: from $8600 including fork, headset, seatposts, stoker stem, bottom brackets, and cranks
Complete bikes: from $14000 with durable, capable components
Gravel Tandem standard size geometry chart (Custom also available)
| Size | S-M | S-XL | M-XS | M-M | M-L | L-M | LT-M | XL-S |
|---|---|---|---|---|---|---|---|---|
| Reach | 375.9 | 376.2 | 383.3 | 383.3 | 383.3 | 392.9 | 372.7 | 398.2 |
| Stack | 568.1 | 567.1 | 592.2 | 592.2 | 592.2 | 606.6 | 625.7 | 620.9 |
| Head Tube | 125 | 125 | 145 | 145 | 145 | 160 | 180 | 175 |
| Captain Effective Top Tube | 555 | 555 | 570 | 570 | 570 | 590 | 570 | 600 |
| Captain Seat Tube | 500 | 500 | 500 | 530 | 530 | 550 | 540 | 550 |
| Boom Tube | 737 | 813 | 724 | 737 | 775 | 737 | 737 | 724 |
| Stoker Seat Tube | 420 | 500 | 320 | 410 | 500 | 420 | 410 | 390 |
| Head Angle | 72.25 | 72 | 73 | 73 | 73 | 73 | 73 | 73 |
| Captain Seat Angle | 72.5 | 72.5 | 72.5 | 72.5 | 72.5 | 72 | 72.5 | 72 |
| Stoker Seat Angle | 74 | 74 | 74 | 74 | 74 | 74 | 74 | 74 |
| Captain BB Drop | 60 | 60 | 60 | 60 | 60 | 60 | 60 | 60 |
| Stoker BB Drop | 65 | 60 | 55 | 65 | 60 | 65 | 65 | 65 |
| Fork Length | 425 | 425 | 425 | 425 | 425 | 425 | 425 | 425 |
| Fork Rake | 60 | 60 | 55 | 55 | 55 | 55 | 55 | 55 |
| Front Center | 606 | 608 | 608 | 608 | 608 | 621 | 607 | 631 |
| Chainstay | 470 | 470 | 470 | 470 | 470 | 470 | 470 | 470 |
| Wheelbase | 1805.9 | 1884.5 | 1794.7 | 1807.7 | 1845.7 | 1821.7 | 1807.4 | 1818.4 |
Gravel Build Kits
| Gravel Force 22 | Gravel eTap AXS | |
|---|---|---|
| Fork | Titanium Chinook Gravel Tandem fork, 1 1/8 - 1 1/2" steerer, 15mm x 110mm Thru Axle | Titanium Chinook Gravel Tandem fork, 1 1/8 - 1 1/2" steerer, 15mm x 110mm Thru Axle |
| Headset | WolfTooth Premium | WolfTooth Premium |
| Front seatpost | Aluminum 28.6mm or 31.6mm x 350mm Zero SB | Aluminum 28.6mm or 31.6mm x 350mm Zero SB |
| Rear seatpost | Carbon suspension seatpost, 31.6 x 330mm x 20mm offset | Carbon suspension seatpost, 31.6 x 330mm x 20mm offset |
| Front handlebar | Zipp Service Course SL-70 Ergo | Zipp Service Course SL-70 Ergo |
| Rear drop handlebar | Zipp Service Course SL-70 Ergo with Chinook Stoker Levers | Zipp Service Course SL-70 Ergo with Chinook Stoker Levers |
| Rear bullhorn handlebar | Deda Elementi Crononero or Profile Stoker | Deda Elementi Crononero or Profile Stoker |
| Brakes | TRP Hy/Rd post-mount | SRAM HydroHC post-mount |
| Rotors | 203mm floating rotors | 203mm floating rotors |
| Shifters | SRAM Force 22 | SRAM Red eTap AXS HRD |
| Front derailleur | SRAM Force 22 | SRAM Force AXS |
| Rear derailleur | SRAM GX Type 2.1 Exact Actuation Long Cage | SRAM Force AXS with Chinook extended cage |
| Cassette | SunRace MX8 11-Speed 11-42T Cassette | SRAM XLPR XG-1271 10-44 12-speed |
| Drive chainrings | SRAM 50/34 | SRAM Flattop 48/35,46/33, or 43/30 |
| Rear cranks | SRAM Force BB30 with extended spindle for right side timing chain | SRAM Force AXS with extended spindle for right side timing chain |
| Front cranks | SRAM Force BB30 | SRAM Force AXS |
| Timing rings | SRAM 34t | SRAM 33t |
| Timing chain/belt | SRAM PC-1170 | SRAM Force AXS Flattop |
| Drive chain | SRAM PC-1170 | SRAM Force AXS Flattop |
| Hubs | White Industries XMR+ | White Industries XMR+ |
| Rims | Spank Oozy Trail 395+ | Spank Oozy Trail 395+ |
Accessories & Options
Gallery
