Tailwind II Road Bike Electric Assist Tandem

Tailwind II

Mid level component package on an electric assist tandem.

Available with road or mountain bars.

Built with the powerful OLI Move motor.  The Tailwind II is a more budget friendly electric assist tandem. Like our Tailwind, it is not a motorcycle and you still get the full cycling experience. The motor is quite, smooth, powerful (80nm), and very natural feeling. The high capacity Li-Ion, 522 Wh, battery last for many miles.

*** This is also available as a frame kit for existing da Vinci owners. You use most of your parts to save money and upgrade to electric assist. Click here for details.

da Vinci Tailwind II Road Components

Frame Material
Retail Price
$6595 Custom Reynolds 7005 Aluminum
Shifters Shimano Tiagra STI 3×10
Derailleurs Shimano Tiagra
Brakes Avid BB7 Front and Rear Disc w/200mm rotors
Front Bars ControlTech One OS 44cm Anatomic Drop Bars
Rear Bars ControlTech Stoker Bars – 47cm
Front Stem ControlTech One
Rear Stem Control Tech Adjustable Stoker
Cranks 170mm Front, 165mm Rear
Rear Cogs Shimano 11-34 10sp
Driving Gears Shimano Hyperglide 13-21-28
Equivalent to 26-42-56
Eccentric da Vinci Designs
Hubs 40 hole Disc Brake. 145mm Rear Spacing
Rims Aero Profile Alex 40h 700c
Tires Vittoria Randonneur Tech w/Reflective Sidewall 700c
Front Seatpost Kalloy Uno 31.6mm X 350mm
Rear Seatpost Kalloy Uno 31.6mm X 350mm
Saddles Velo Pronto and Serina
Color Lunar Silver

da Vinci Tailwind II Hybrid Components

Frame Material
Retail Price
$6595 Custom Reynolds 7005 Aluminum
Shifters Shimano Tiagra Flat Bar Trigger 3×10
Rear Derailleur Shimano Tiagra 10sp
Front Derailleur Shimano Tiagra Triple
Brake Levers AVID FR5
Brakes Avid BB7 Front and Rear Disc with 200mm rotors
Front Bars Flat or Riser mountain bars
Rear Bars Profile Stoker 26 – 47cm
Front Stem ControlTech One
Rear Stem Control Tech Adjustable Stoker
Cranks 170mm Front, 165mm Rear
Rear Cogs Shimano 11-34 10sp
Driving Gears Shimano Hyperglide 13-21-28
Equivalent to 26-42-56
Eccentric da Vinci Designs
Hubs 40 hole Disc Brake. 145mm Rear Spacing
Rims Aero Profile Alex 40h 700c
Tires Vittoria Randonneur Tech w/Reflective Sidewall 700c
Front Seatpost Thomson Elite 31.6mm
Rear Seatpost Cane Creek Thudbuster ST or LT
Saddles Selle Italia Man Flow and/or Lady Flow
Colors Click here to see the Paint Colors page

da Vinci Designs Options

Captain Stem
ControlTech 10º rise 90, 100, 110, 120mm N/C
ControlTech 17º rise 100, 110mm N/C
Thomson or Profile 10º rise 75, 90, 100, 110, 120, 130mm $
Thomson or Profile 17º rise 75, 90, 100, 110, 120, 130mm $
Profile Aris 25º rise 75, 90, 100, 110,120mm $
Everland 40º rise 75, 90, 100, 110,120mm $

 

Captain Road (Drop) Bars
ControlTech One Dropbars Ergonomic short and shallow drop 44cm wide N/C
FSA Wing Compact Comfortable shape drop bars with a shallow drop. 44cm or 42cm $20
Profile Cobra Carbon Fiber drop bars with ergonomic contours $$
ENVE Composites What can you say, ENVE Composites drop bars, are light, strong, the best $$$
     

 

Captain Hybrid (Mountain) Bars
FSA Comet flat mountain bars, 740mm wide N/C
Profile Ultra FR 40mm rise, 650mm wide N/C
Profile Ultra FR 60mm rise, 650mm wide N/C
   

 

Stoker Stem
Control Tech Adjustable Long 200 to 255mm. They can be cut shorter. N/C
Control Tech Adjustable Medium 170 to 225mm. They can be cut shorter N/C
Extra Stoker Boom Long stoker stem boom to switch between an adult and child stoker,
and the adjustment of the stoker stem is not enough.
$45
2″ (50mm) Stem Riser This stem extension works with most bars to raise,
or move it closer. .
$48
Fixed Length Titanium Half the weight of an adjustable stem. Available in 160mm, 180mm, or 200mm. Custom length available for addition cost. $125

 

Stoker handlebars
Profile Stoker Bars 47cm wide Light, comfortable, multiple hand positions. Allows most fore/aft reach
range.
N/C
Profile WingA Stoker Bar 46cm Same as above with OS Clamp (31.8mm) “Wing” flat area for comfort. $37
Profile Cobra Wing Stoker Bar 46cm Some as WingA above but carbon fiber, lighter, and hand contours for even more comfort. $225
46cm Wide Drop Bars Wide drop bars to clear the captain’s hips (price includes Cane Creek stoker levers). $49
44cm Profile Cobra Drop Bars Profile Cobra carbon fiber drop bars with Cane Creek stoker lever. $274
44cm ENVE Composites Drop Bars ENVE Composites carbon fiber drop bars with Cane Creek stoker lever. $355
Flat Mountain Bars Some prefer the wider flat bars. Lighter, too. N/C
25 to 90mm Riser Bars For tall stokers with short captains, or stokers who like to sit up more. $20
Bar ends Add comfort and hand positions to flat bars or riser bars. $25

 

Rear Cranks

165mm

165mm N/C
da Vinci Direct Drive Billet Machined: 200mm, 180mm, 175mm, 172.5mm, 170mm, 167.5mm, 165mm, 160mm, 150mm,  3 hole 130/150/170mm, or  3 hole 120/140/160mm $180

 

Stoker Seatposts
Kalloy Uno 31.6mm Light, strong basic rigid seatpost. N/C
Thudbuster Short Travel Lightest shockpost we stock., 440g.
Includes different elastomers to tune spring rate.
$125
Thudbuster Long Travel Longest Travel, requires 144mm from saddle rails to top of seat tube, 565g.
Includes different elastomers to tune spring rate.
$125
Cirrus Kinekt Seatpost 2.1 Advanced suspension design. Adjustable, active, comfortable.    529g
Available in three weight ranges: 100-150lbs, 150-200lbs, 200-250lbs.
$225

 

Saddles
Sella Italia Man Flow (TransAm) and/or Lady Flow (TransAm)
Velo Pronto and Serina Men’s and/or Women’s
We have other saddles. Call to inquire.

 

Tires
Model
(F= Folding, W=Wire bead)
Description Actual Width Weight  
Vittoria Randonneur Tech 700x28 /W This is a robust road tire with reflective sidewall     N/C
Vittoria Randonneur Tech 700x32 /W This is a robust road tire with reflective sidewall     N/C
Vittoria Randonneur Tech 700x35 /W This is a robust road tire with reflective sidewall 1.33" (34mm)   N/C
Vittoria Randonneur Tech 700x40 /W This is a robust road tire with reflective sidewall 1.65" (42mm)   N/C
Panaracer RIBMO 700×28 /F Great, long wearing, stable, fast, and
good puncture resistance.
1.10″ (28mm) 392g $
Panaracer RIBMO 700×32 /F Wider version of above tire. 1.25″ (32mm) 400g $
Panaracer RIBMO 26″x1.25″ /F Great, long wearing, stable, fast, and
good puncture resistance.
1.18″ (30mm) 355g $
Panaracer RIBMO 26″x1.5″ /F Wider version of above tire.  1.45″
(36mm)
440g $
Continental GP Four Seasons
700 x 28mm /F
Great road tire 1.10″ (28mm) 280g $$
We have other tires. We stock tires from skinny to knobby, please ask.     $
         

 

Child Adapter
Child Kit Clamps to rear seat tube for higher crank location. Price includes
BB Spindle and length of chain. This works great with our Three Hole Cranks
$175
Extra Stoker Boom Long stoker stem boom to switch between an adult and child stoker,
and the adjustment of the stoker stem is not enough.
$45