da Vinci Tandem Sizing
frame2

    Click here to download frame & fitting dimensions in .pdf form

Dimensions Small Medium Large Large/Small
Front Seat Tube C/T
(A1)
20.5″(52.1cm) 22″(55.9cm) 23.5″(59.7cm) 22″(55.9cm)
Rear Seat Tube C/T
(B1)
16.75″(42.5cm) 18.75″(47.6cm) 20.75″(52.7cm) 16.75″(42.5cm)
Front Seat Tube C/C
(C1)
17.2″(45.3cm) 19.3″(49.1cm) 20.8″(52.9cm) 18.75″(47.6cm)
Rear Seat Tube C/C
(D1)
14.2″(36.1cm) 16.2″(41.1cm) 18.2″(46.2cm) 14.2″(36.1cm)
Front Standover* 29.6″(75.3cm) 31″(78.7cm) 32.3″(82.1cm) 31.6″ (80.4cm)
Rear Standover* 26.1″(66.2cm 27.9″(70.9cm) 30.4″(77.2cm) 26.4″(67.2cm)
Front Top Tube
(E1)
21.5″(54.6cm) 22″(56cm) 22.5″(57.2cm) 22.5″(57.2cm)
Rear Top Tube
(F1)
28.4″(72.1cm) 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. 73/73 Deg.
BB Height * 10.5″(27cm) 10.5″(27cm) 10.5″(27cm) 10.5″(27cm)
Reach
(See drawing “R”)
14.9″(37.8cm 15″(38.1cm) 15.2″(38.6cm) 15.2″(38.6cm)
Stack
(See drawing “S”)
21.7″(55cm) 22.9″(58cm) 23.8″(60.5cm) 23.8″(60.5cm)

*These dimensions are accurate with 1.1″ tires (28mm). Add .5″ (1.3cm) for 1.5″ tires.


Fitting a da Vinci

If you have a bike that fits you well, tandem or singles, look at the drawing below and measure your bike (A,C for captain : E for stoker) and look at the chart below. If you have any questions, please call and we’ll help.

    Click here to download measuring instructions in .pdf form

cframe

Captain’s Minimum and Maximum Seat Extension.
Measured from the bottom bracket centerline to the top of the saddle along the seat tube (Dim. “A” from above).

Small Medium Large Large/Small
Minimum 26″  (66cm) 27.5″  (69.9cm) 29″  (73.7cm) 27.5″  (69.9cm)
Maximum 32.5″  (82.6cm) 34″  (86.4cm) 35.5″  (90.2cm) 34″  (86.4cm)

Stoker’s Minimum and Maximum Seat Extension with Thudbuster ST sock post.
Subtract 2.75″ (7cm) for rigid seatpost. Add 1.75″ (4.4cm) for Thudbuster LT.
Measured from the bottom bracket centerline to the top of the saddle along the seat tube (Dim. “E” from above)

Small Medium Large Large/Small
Minimum 23 (58.4cm) 25 (63.5cm) 27 (68.6cm) 23 (58.4cm)
Maximum 28.75 (73cm) 30.75 (78.1cm) 32.75 (83.2cm) 28.75 (73cm)

Captain’s Handlebar Extension Measured from the centerline of the seatpost to centerline
of handlebar clamp (Dim “C” from above).

Small Frame 10º rise stem 17º rise stem
80mm stem 24.8″  (62.9cm) 24.5″  (62.1cm)
90mm stem 25.2″  (64cm) 25″  (63.6cm)
100mm stem 25.6″  (65cm) 25.4″  (64.6cm)
110mm stem 26″  (66cm) 25.8″  (65.6cm)
120mm stem 26.4″  (67.1cm) 26.2″  (66.6cm)
130mm stem 26.8″  (68.1cm) 26.6″  (67.6cm)

 

Medium Frame 10º rise stem 17º rise stem
80mm stem 25.3″  (64.2cm) 25″  (63.4cm)
90mm stem 25.7″  (65.2cm) 25.5″  (64.9cm)
100mm stem 26.1″  (66.3cm) 25.9″  (65.9cm)
110mm stem 26.5″  (67.3cm) 26.3″  (66.9cm)
120mm stem 26.9″  (68.3cm) 26.7″  (67.9cm)
130mm stem 27.3″  (69.4cm) 27.1″  (68.9cm)

 

Large or Lrg/Sm 10º rise stem 17º rise stem
80mm stem 25.8″  (65.5cm) 25.5″  (64.7cm)
90mm stem 26.2″  (66.5cm) 26″  (66.1cm)
100mm stem 26.4″  (67.5cm) 26.4″  (67.1cm)
110mm stem 27″  (68.6cm) 26.8″  (68.2cm)
120mm stem 27.4″  (69.6cm) 27.2″  (69.2cm)
130mm stem 27.8″  (70.6cm) 27.6″  (70.1cm)