X-Y devices?

[Gummee]

Anyone build one?

Anyone in the DC area have one?

I've got 4 bikes, 3 different saddles and I wanna get em all the same.

M

[JAGI410]

Tape measure doesn't get you close enough? Match the bike that fits best, adjust the others accordingly.

[aaronf]

Purely Custom made them for Serotta. Looks like you can order direct:

http://www.purelycustom.com/p-290-xy-tool.aspx

[ultraman6970]

I been thingking in something made of aluminum profiles since many years ago. Way cheaper too.

[Gummee]

Purely Custom made them for Serotta. Looks like you can order direct:

http://www.purelycustom.com/p-290-xy-tool.aspx

I've been trying to come up with a good way to build one of those. $300 is a bit steep...

M

[dekindy]

Builders's T-Square, tape measure, and mini-level are cost-effective tools that will get you close enough if you have the patience; got mine at Home Depot.

[JAGI410]

The X-Y tool doesn't take crank length into account, which is certainly a factor unless every bike you have has the same crankset.

The cheap way to build one would be to temporarily zip tie the crank arm on the drive side to the seat tube. This should put the non-drive side (NDS) crank arm parallel with the seattube. From here, place a yardstick on top of the pedal spindle (NDS) and zip tie parallel to the seatpost. Now your Y coordinate is established for your seat height. Since the first yardstick is held in place, you can use a second yardstick to measure saddle to bar distance. Put marks on the second yardstick at saddle nose/bar intersection points. Now the X coordinates are established. Hold the second yardstick in place with zip ties/helping hands and measure the angle of it. Use a smartphone level app or a handheld level. Mark this angle down for reference.

Now you'll have a simple way to measure/setup each bike to match, for less than $5.

If you wanted to improve upon it, you could add Velcro straps to the "Y" stick and a pivot bolt to the "X" stick. You could even glue a cheap bubble level to it. There are many ways to refine this into a great home-shop quality tool for under $20.

[AngryScientist]

Builders's T-Square, tape measure, and mini-level are cost-effective tools that will get you close enough if you have the patience; got mine at Home Depot.

add to that a plumb bob, and you can do anything that little device can, cheaper and better.

[JonB]

http://www.bicisupport.it/?fuseaction=skdArticoli&id=394&idcategoria=3&titolo=BIKE%20SIZE%20/%20TEMPLATE%20FOR%20BICYCLE%20MEASURES

[Gummee]

http://www.bicisupport.it/?fuseaction=skdArticoli&id=394&idcategoria=3&titolo=BIKE%20SIZE%20/%20TEMPLATE%20FOR%20BICYCLE%20MEASURES

I wish.

All my road crankarms are 170s. Makes it pretty easy to eliminate one variable.

If/when they build a track here in the DC area, that may change.

M

[Hindmost]

Builders's T-Square, tape measure, and mini-level are cost-effective tools that will get you close enough if you have the patience; got mine at Home Depot.

T-square is also known as a drywall square. Cheap and very effective. I binder-clip a 6 inch rule to mine and easily measure seat setback and bar drop.