How about upgrading freewheel to 9 from 6?

[car5car]

I measured dropout 138 mm, but I only have 6 sprocket freewheel.
According to this table 135 is enough for 9 sprocket freewheel (cassette):
http://www.sheldonbrown.com/gloss_sp-ss.html#spacing
What do i need to convert freewheel to cassette? Will I need new derailleur?

[nfmisso]

There are no 9 speed freewheels. And likely you have a freewheel, as there were very few 6 speed cassettes. Cheapest: purchase a new rear wheel, new cassette, new shifter, new derailluer and new cable - figure between $100- for very low end stuff, to around $500- for good stuff, and $1000- for the very good stuff.

I doubt that you have 138mm between the dropouts, maybe to the outside of the drop outs.

[car5car]

[RBurrelli]

car5car. Your ruler appears to be backwards in this picture. You want to measure the space between the dropouts.

[car5car]

Left side of the ruler has mm scale.

[RBurrelli]

Sorry. I did not see the dropout on that end of the ruler.

[trevgbb]

read this before you spend lots of dosh;
http://www.jakesbikes.co.uk/content/348.php

[nfmisso]

(04-14-2011, 07:46 AM)trevgbb Wrote:  read this before you spend lots of dosh;
http://www.jakesbikes.co.uk/content/348.php

Excellent article.