da Vinci Designs In-2-ition Mountain Tandem

Same hand built frame as the Joint AdVenture with price-sensitive component package.
Available in:
Chrome-moly Steel (with and without S&S Couplers)
Custom Reynolds 7005 Aluminum

da Vinci Designs

Frame Material
$4495 Reynolds Chrome-moly Steel
$6395 Chrome-moly with S&S Couplers*
$4895 Custom Reynolds 7005 Aluminum
*S&S Couplers allow the frame to be taken apart and fit into a small travel case. Also includes : reusable frame pads, Easy-Split cable separators, and self extracting crank bolts.
Rear Deraileur Sram / Grip Shift X.7
Front Deraileur Compact Triple
Shifters Grip Shift X.7 9 x 4 (yes four chainrings)
Brakes Avid BB7 Front and Rear Disc with 200mm rotors
Front Bars OS Flat Mountain
Rear Bars ControlTech Stoker – 47cm
Front Stem ControlTech One OS
Rear Stem Control Tech Adjustable Stoker
Cranks Sugino 175mm and 170mm any combination front & rear
Rear Cogs Sram PG-950 11-32 9sp
Chainrings Shimano Hyperglide 12-18-24-30 Equivalent to 24-36-48-60
Hubs 40 hole 145mm Rear Spacing Disc Brake
Rims 40h Alex DA16 Aero Profile
Tires Kenda Kwick Roller 26 X 1.5
Seatposts Kalloy Uno 31.6mm X 350mm
Saddles Velo Pronto and Serina
Colors Click here to see the Paint Colors page

da Vinci Designs – Options & Upgrades

Package #1 – $675
Carbon Fiber Fork
White Industries Freewheels for ICS
Cane Creek 110 Headset
House of Kolor Kandy or Two color fade Paint job
Package #3 – $1495
Carbon Fiber Fork
White Industries Freewheels for ICS
Cane Creek 110 Headset
House of Kolor Kandy or Two color fade Paint job
Rolf Prima, or Spinergy Tandems Wheels

Sugino 175mm or 170mm
Upgrade to da Vinci Cranks $180/pr for a Choice of the following lengths:
200mm, 180mm, 175mm, 172.5mm, 170mm, 167.5mm, 165mm, 160mm, 150mm, 3 hole 130/150/170mm, or 3 hole 120/140/160mm


(F= Folding, W=Wire bead)
Description Actual Width Weight Upgrade
Kenda Kwick Roller Sport 26×1.25″ /W Good tandem road tire. Long wearing 1.13″ (29mm)
Kenda Kwick Roller Sport 26×1.5″ /W Wider Version of above. 1.5″
Panaracer RIBMO 26″x1.25″ /F Great, long wearing, stable, fast, and
good puncture resistance.
1.18″ (30mm) 355g $25/ea
Panaracer RIBMO 26″x1.5″ /F Wider version of above tire. 1.45″
440g $25/ea
We have other tires. We stock tires from skinny to knobby, please ask.


Captain Stem

ControlTech “ONE” 10 deg. rise 100, 110, 120mm N/C
Thomspon 10 deg. rise 70, 90, 100, 110, 120, 130mm $55
Thomspon 17 deg. rise 60, 75, 90, 100, 110, 120, 130mm $55
Bontrager 25 deg. rise 75, 90, 105,120mm $25
Bontrager 40 deg. rise 75, 90, 105,120mm $25


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.
2″ (50mm) Stem Riser This stem extension works with most bars to raise,
or move it closer. .
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
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 T2 Wing 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


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
Little Stoker Kid Cranks OUT OF STOCK- Re-machined Shimano XT Cranks two holes, 125 and 145mm. N/A
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.


Stoker Seatposts

Kalloy UNO Light and Strong, 318g. N/C
Thudbuster Short Travel Lightest shockpost we stock., 440g.
Includes different elastomers to tune spring rate.
Thudbuster Long Travel Longest Travel, requires 144mm from saddle rails to top of seat tube, 565g.
Includes different elastomers to tune spring rate.
Great alternative to a Softride Beam.
Carbon Fiber Bontrager 250mm Carbon fiber non-suspended 181g $125



Velo Pronto and Serina Men’s and/or Women’s
Sella Italia Man Flow (TransAm) and/or Lady Flow (TransAm) $18
We have other saddles. Call to inquire.

Other Upgrades, Options and Additions

Wound Up Carbon Fiber Fork, available for 26″, 700c and front disc brake Great comfort and performance upgrade $425
Control Tech arbon Fiber Fork for 26″ Canti or Disc Brake Light, strong and more “traditional” looking carbon fiber fork. This fork has canti studs in the 26″ location, lower eyelets and a disc brake mount. It is great for using a lowrider front rack that attached via the canti studs. $425
XT Hydraulic Disc Brakes XT four piston disc brakes with IceTech 203mm rotors $600
White Industries Freewheels These are the highest quality freewheels made and have been adapted to our Independent Coasting Drivetrain. Durable, precision, and sealed. 17, 18, or 19 tooth. $185
Titanium Bottom Brackets Same design as stock (See Components page) Save 55g each or 110g per tandem $75 ea
Cane Creek 110 Headset The best headsets money can buy. Cane Creek has 110 year Warrantee. $75
Joint Venture Wheels Upgrade to hand built wheels with White Industry Hubs and V-23 rims. This is also how you can get an In-2-ition with 700c wheels. $300
Black Hubs and Spokes This option is for bikes with White Industry Hubs and V-23 rims. $40
Rolf Tandem Wheels Through exclusive arrangements with Rolf, now available for 26″ road tandems as well as the standard 700c $850
Spinergy TX2 Tandem Wheels Light, durable, and very comfortable. $850

We use only the highest quality PPG and House of Kolor paint.
All bikes are painted with primer, base coat and clear coat.
The colors on your computer may not look exactly the same as is does in person.

Custom Colors & Paint Jobs

None stock colors (most colors) – add ~$60 ea

Pearl added to clear coat – – – – – add $40

House of Kolor Kandy colors – – – – add $100

Two color fades – – – – – – – – – – add $100

Three color fades – – – – – – – – – add $150

Kameleon (Shade Shifter) – – – – – add $200

Flames or similar masking – – – – – add $250 +/-

Midnight Blue – 5674 • Dark metallic blue. We first saw this color on a Honda CRV and had to add it to our selection.
Stratto Blue – HOK BC04 • Bright metallic royal blue.
Lapis Blue – HOK BC05 • This is an updated version of the Viper Blue which was one of the most popular colors we have used.
Lake Violet Pearl – HOK PBC63 • Very pearlescent. It can look blue or blue/purple in different light.
Passion Pearl – HOK PBC65 • Very pearlescent. This color looks stunning faded with the Lake Violet Pearl.
Pavo Purple – HOK BC10 • Metallic purple.
Blueblood – HOK SG105 • Non metallic or pearl, just very very red.
Tangelo – HOK PBC32 • Pearlescent orange
Sunrise – HOK PBC30
Designo Green – 401131
Cosmic Green – 48929 • This has been a very popular color. Metallic green found on certain VW’s.
Emerald Green – HOK PBC59 • This metallic dark green has a hint of blue like British racing green.
Black – 9700 • Black is beautiful. This is also the easiest color to match the touch up for bikes that will see the abuse of travel.
White – HOK BC26
Snow White Pearl – HOK PBC44 • Very pearlescent, almost metallic silver looking.
Orion Silver – HOK BC02 • Bright metallic silver. This is the base color for all Kandy paint jobs.
Champange – 5411
Titanium Silver – 350004 • This was the closest match we could find to media blasted titanium.
Kandy Apple Red – UK11 • This is the sexiest red around.
Kandy Tangerine – UK08 • Another tragically hip color.
Kandy Pegan Gold – UK12
Kandy Oriental Blue – UK04 • A brighter, deeper version of Stratto Blue.
Kandy Colbalt Blue – UK05 • Dark purple-ish blue that looks like it has been plugged in an oulet and lit up.


Road Tandem
Small Medium Large Large/Small
Front Seat Tube C/T
20.5″(52.1cm) 22″(55.9cm) 23.5″(59.7cm) 22″(55.9cm)
Rear Seat Tube C/T
16.75″(42.5cm) 18.75″(47.6cm) 20.75″(52.7cm) 16.75″(42.5cm)
Front Seat Tube C/C
17.2″(45.3cm) 19.3″(49.1cm) 20.8″(52.9cm) 18.75″(47.6cm)
Rear Seat Tube C/C
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
21.5″(54.6cm) 22″(56cm) 22.5″(57.2cm) 22.5″(57.2cm)
Rear Top Tube
28.4″(72.1cm) 28.4″(72.1cm) 28.4″(72.1cm) 28.4″(72.1cm)
Head / Seat Tube
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)
(See drawing “R”)
14.9″(37.8cm 15″(38.1cm) 15.2″(38.6cm) 15.2″(38.6cm)
(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.