Chainstay length, BB height

[marshall2389]

Does anyone know how the V20's chainstay length compares to the S30's with the 150 mm extension as they affect the bottom bracket height (relative to the seat pan)?

 

[jond]

that would depend entirely on your leg inseam torso reach etc and adjustment to suit. eg i have a large vendetta v2.2 frameset and my boom is virtually horizontal at almost maximal boom inward to slider adjustment. dont think i am out of proportion eg short legs long body etc. i am six feet one inch tall. someone with longer legs would have the boom and thus BB at a lower angle and height respectively. i cannot comment about the silvio. this adjustment puts my feet and knees at eyeline.

 

[marshall2389]

I'm hoping someone out there has both a V20 and an S30 to comment on how his two setups compare.

 

[Robert Holler]

Elliot,

The S30 with a 150mm extension puts the BB very high and closes the hip angle quite a bit. It puts in a few higher inches than the V20 BB "on average" depending on x-seam, etc.

Im my experience a higher BB on a S30 or a V20 does not always equal more speed or power, and there are a lot of individual factors.

 

[marshall2389]

Thank you for the response. It's a thank you for the response. The relationship of bottom bracket height and body position to power production and aerodynamics is complicated.

 

[Rick Youngblood]

The relationship of bottom bracket height and body position to power production in aerodynamics is complicated

and not to mention an individuals height is a factor. A person with a very long inseam will rotate the BB down, so he may need a long extension to compensate. To where a short person like LarryO at 4'6" ( ) with an extension will put the handles below his lap (ouch ).

 

[ReklinedRider]

and not to mention an individuals height is a factor. A person with a very long inseam will rotate the BB down, so he may need a long extension to compensate. To where a short person like LarryO at 4'6" ( ) with an extension will put the handles below his lap (ouch ).

Underseat steering! I like it!

 

[marshall2389]

and not to mention an individuals height is a factor. A person with a very long inseam will rotate the BB down, so he may need a long extension to compensate. To where a short person like LarryO at 4'6" ( ) with an extension will put the handles below his lap (ouch ).

That's why I asked for a comparison of S30+150mm versus V20.