da Vinci Designs Grand Junction Tandem

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Making the ICS drivetrain available for riders seeking an entry level tandem has been a dream of ours for many years.

da Vinci Designs has partnered with the best steel frame fabricator in Taiwan to bring you a more affordable tandem with all the benefits of the ICS drivetrain. The Grand Junction also uses the same high quality Reynolds tubing used in our Denver-built tandems.

If you’ve been looking at a da Vinci tandem, but the price has held you back, the Grand Junction is the bike for you.

Frame Material Custom drawn, oversize, multi-butted, Reynolds chrome-moly steel
Rear Deraileur Shimano Deore
Front Deraileur Compact Triple
Shifters Shimano Tiagra STI
Brakes 200mm Avid BB7 Disc Front and Rear
Front Bars OS 44cm Anatomic Drop Bars
Rear Bars Profile Stoker 26 47cm
Front Stem NVO TM-3 3D Forged OS
Rear Stem Control Tech Adjustable Stoker
Cranks Sugino Fuse 175mm Front, 170mm Rear
Rear Cogs Sram PG-950 11-32 9sp
Driving Gears Hyperglide 14-21-28 Equivalent to 28-42-56
Eccentrics da Vinci Designs Custom
Hubs 40 hole Disc Brake. 145mm Rear Spacing
Rims Aero Profile 40h Alex DA16
Tires Kenda Kwick Roller 26 X 1.25
Front Seatpost Kalloy Uno 31.6mm X 350mm
Rear Seatpost Kalloy Uno 31.6mm X 350mm
Saddles Velo Pronto and Serina
Colors Metallic Red or Metallic Blue
Retail Price $3495 Custom frame sizes, S&S Couplings, and Custom Paint not available on the Grand Junction Sizes: Small, Medium, and Large/Small Only
Road Tandem
Dimensions
Small Medium Large/Small
Front Seat Tube C/T
(A1)
20.5″(52.1cm) 22″(55.9cm) 22″(55.9cm)
Rear Seat Tube C/T
(B1)
16.75″(42.5cm) 18.75″(47.6cm) 16.75″(42.5cm)
Front Seat Tube C/C
(C1)
17.2″(45.3cm) 19.3″(49.1cm) 18.75″(47.6cm)
Rear Seat Tube C/C
(D1)
14.2″(36.1cm) 16.2″(41.1cm) 14.2″(36.1cm)
Front Standover* 29.6″(75.3cm) 31″(78.7cm) 31.6″ (80.4cm)
Rear Standover* 26.1″(66.2cm 27.9″(70.9cm) 26.4″(67.2cm)
Front Top Tube
(E1)
21.5″(54.6cm) 22″(56cm) 22.5″(57.2cm)
Rear Top Tube
(F1)
28.4″(72.1cm) 28.4″(72.1cm) 28.4″(72.1cm)
Head / Seat Tube
Angle
73/73 Deg. 73/73 Deg. 73/73 Deg.
BB Height * 10.5″(27cm) 10.5″(27cm) 10.5″(27cm)
Reach
(See drawing “R”)
14.9″(37.8cm 15″(38.1cm) 15.2″(38.6cm)
Stack
(See drawing “S”)
21.7″(55cm) 22.9″(58cm) 23.8″(60.5cm)