Big Bang D9 is an adventure tandem intended for cycle tourism, expeditions for two or just having fun together. Quite often, Duratec builds these tandems for parents of a disabled child or spouse. For this reason, Duratec produces the D9 is a very unique assortment of sizes and offers a fully custom option when needed. Being that the D9 is built for adventure, it comes with rear rack, lights and fender attachments.
The D9 is available with two different style of drivetrains. You can select the traditional 2X / 3X style drivetrain or Duratec can build you D9 to be compatible with a rear 1 X 14 internal speed Rohloff hub in combination with a BELT TRANSMISSION.
Each D9 tandem is built-to-order in the Duratec factory located just outside of Pilzen, Chech Republic. Available in 9 different sizes and 15 standard colors with custom geometry and paint available upon request.
Duratec tandems take 4 weeks to produce and ship via Federal Express or DHL directly from the factory in Czech Republic to authorized dealers and consumers across North America.
Each D9 MTB tandem frame includes: headset, seat clamps and replaceable rear derailleur hanger
Frame: 7020 T6 aluminum alloy
Optional rigid fork: 7020 T6 aluminum alloy, 100x15mm (includes SRAM Masle)
Headset: 1 1/8" - 1 1/2" FSA ORBIT IS
Rear spacing: 135 QR
Max rotor size: 203mm
Max tire clearance: 700x40
Bottom brackets: BSA Standard 68mm
Seatpost size: 27.2
Accessory mounts: Rear rack, lights and fenders
Front derailleur mount: 34.9 clamp diameter, designed for bottom pull
Bottle cage mounts: 1 set for the pilot, 2 for the stoker
Custom geometry + $250 (Call or email for details)
Custom paint + $250 (Call or email for details)
Rear end adapted for Rohloff 1x14 speed internal hub (includes modification for Gatles Carbon Belt and second eccentric bottom bracket) + $350
Rear end adapted to 142x12mm spacing (including thru axle and rear hanger system) + $100
Internal Di2 wiring kit + $250 (wires and junctions installed for internal seatpost battery)
Front rack mounts + $40