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400 grams - Reduce rotating mass without any sacrifices
Impressively Stiff - All your enery goes into every pedal stroke
Single Radius Crank Profile - Allows chainring, front deraileur, chainstay, and ankle clearance while increasing strength and stiffness
Tapered Crank Arms - Put the strength where it is needed and reduces weight
Replaceable / Interchangeable Spider - When the industry changes, or you change your chainring pattern, you don't have to replace your cranks
No Creaking - Design eliminates the creaking associated with three piece cranks
Low 158mm Outside to Outside Q-Factor - Easier on your body
Low Profile Bottom Bracket Spindle - Increases stiffness and reduces weight by using a shorter spindle.
    103mm spindle for road bikes
    107mm spindle for mountain bikes
    103 to 107mm spindle for tandem captain cranks (you can go wider if you like)
    107 to 113mm spindle for tandem stoker cranks

Lengths Available- 150mm -160mm - 165mm - 170mm - 172.5mm - 175mm - 180mm - or
130/150/170 Triple Hole Child/Full-size-person Cranks

Spiders Available
* Four Arm 104mm - 64mm
* Standard 110mm - 74mm
* Road 130mm (with 74mm triple option)
* 34 tooth Spider/Chainring. This is a replaceable one piece spider/34 tooth chainring. It is lighter, less expensive (no need to buy chainrings and chainring bolts) and guaranteed perfectly concentric. New tooth profile will outlast all other chainrings.

Retail Prices
Single Bike or Tandem Front -
    $220 Any length/Spider combination w/o triple hardware
    $230 Any length/Spider combination with triple hardware
Tandem Rear -
    $260 Any length/Spider combinations.

Complete Tandem Crankset - Front and rear cranks (any sizes we make),
34 tooth Crossover/Spiders
FSA ramped and pinned chainrings, your choice (55, 54, 53, 52t Outer), (44, 42, 39t Middle), (32, 30, 28t Inner)
$550

Little Stoker Kid Cranks
$85

 We bought and re-machined Shimano Deore XT Cranks for use with a sliding bottom bracket for your child stoker.

• Drilled for both 125mm and 145mm crank lengths
• CNC Machined shorter
• Back side is machined for less weight
• An affordable, more elegant alternative to crank arm shorteners
• Left arm has a 110/74mm chainring bolt pattern. Right arm has no spider.

Child Kit
Kit Price $225

Includes Little Stoker Cranks, sliding bottom bracket, spindle, 34t or 38t chainring, chain, and hardware. (This is all you need for a da Vinci tandem. A conventional tandem will require a second chainring, long chainrings bolts and spacers between the two left rear chainrings

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Probably the highest strength to weight ratio of any bicycle rim made.

Change any tires without tire levers.

• 6061 T6 Aluminum Alloy
• 22mm Wide - 24mm Tall
• Available in:  26" - 32 or 36 hole and
• 700c in 36 or 40 hole

Improves your braking
Reduced "mushy" feeling at your brake levers
Reduce brake squeal

• We spent several tedious months on the design of these brake boosters. Trial and error with sophisticated stress analysis software -- shaving a few grams here, adding a few grams there, until we came up with the ultimate design of stiffness and light weight.
• Both Stiffys are available with Standard Spacers to fit most cantilever brakes or V Spacers for use with Shimano V-Brakes.
• Big Stiffy (62 grams) for tires over 1.4". The stiffest big tire brake booster we have experienced. It's not the lightest, but are you looking for a piece of jewelry for your bike or something to improve your braking?
• Small Stiffy (47 grams) for tires up to 1.4". The Stiffest & Lightest brake booster around. If you are running skinny tires, there is no other choice.

Standard Kit Includes: (2) Shift Cable Separators (1) Brake Cable Separator (1) 2mm Allen Wrench
Retail Price $32

Shifter Kit Includes: (2) Shift Cable Separators (1) 2mm Allen Wrench
Retail Price $23

Easy-Splits also work for quick handlebar conversions.
If you have compatible road and mountain shifters and derailleurs, as well as compatible brakes. You could easily switch between road and mountain bars for different types of riding.

Bar Switch Shifter Kit Includes: (2) Shift Cable Separators (2) Extra male halves (1) 2mm Allen Wrench
Retail Price $34

Bar Switch Brake Kit Includes: (1) Brake Cable Separators (1) Extra male halve (1) 2mm Allen Wrench
Retail Price $18

 

Pro Built Tandem Wheels 
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• 26" V-22 rims 36 spokes (more than enough for these rims) or 700c V-22 rims
• Wheelsmith 14/15/14g (2.0/1.7/2.0mm) Spokes
• White Industries Tracker Front Hub
• White Industries Tandem Rear Hub - Threaded for drum brake
• Professionally hand built with Spoke Prep to reduce spoke loosening and pre-stressed (spokes are over-tensioned by hand to pre-stretch them). Also to reduce maintenance.

Retail Price $200 Front - $300 Rear

And for the gram counters - 840 grams Front - 1060 grams Rear - For full blown tandem wheels ready for years of trouble free service.  Add 58 grams per wheel for 700c

Add $15 each wheel for DT AlpineIII Spokes 13/15/14g (2.3/1.8/2.0mm) - Adds about 25 grams per wheel.

Control Tech Adjustable Stoker Stem
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Length (uncut boom) 200mm to 255mm
Minimum length (after cutting) 155mm to 210mm

Seatpost clamping diameter 29.8mm.
27.2mm and 28.6mm shims available

Stem $95
Spare/Replacement Boom $40
27.2mm, or 28.6mm shims $5

Custom Rear Derailleur
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When is the best not good enough?
Even though we offer a wider range of gears than any other bicycle in the industry, we occasionally have a need for gearing a little lower. The Campagnolo rear derailleurs we have been using for years do not work well with rear cogs larger than 29 tooth. We do not want to give up the reliability, rebuildabilty, comfort and front derailleur trim that only Campy Ergo shifters offer, but ten speed chains are proving to be too finicky and not very durable. Keeping to our Credo of "Drawing outside the chalkboard" we modified SRAM X9 and X7 derailleurs to work with Campy shifters. Now you can use any Campagnolo ten speed Ergo shifter and SRAM or Shimano compatible 9 speed cassette together. The CNC machined aluminum cable guide replaces the plastic one on the back of every X9 or X7 derailleur.

Modified SRAM X-7 $105
Modified SRAM X-9 $130

da Vinci Socks  Made in Colorado USA
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Small (Women's 5-8, Euro 35-39.5)
Med (Men's 7-9, Women's 8.5-10.5, Euro 40-42.5)
Large (Men's 9.5-11.5, Women's 11.5-30, Euro 43-45.5)
$10
 

Travel Cases
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(Left) S&S Deluxe Case - 10" $495 - 12" $575
(Middle) S&S Standard Case - 10" $400 - 12" $445
(Right) TriAll3 Sports Wheel Safe Pro $335
(Not Shown) Designer Case - 10" Black Not as thick as above S&S cases. $395

Prices only good with S&S bike purchase