That little hole

bugloss

Retrobike Rider
'scuses for being an ignoramus but why do racing frames have that little hole on the rear dropout.

Love Bugloss.
 
Thanks for that Ian but it was this little hole that I was interested in.
 

Attachments

  • This little hole.jpg
    This little hole.jpg
    54 KB · Views: 853
Wow, Posh!
Don't have a picture do you?
Or is it just a type of rusty nail poked through the hole?
 
Well bugger me thats a new one on me! My last device for holding the chain in place without the wheel fitted was a bare hub !
 
After reading the link Shaun put up i now understand what that 'thing' is for :shock:

The Portacatena was introduced at the '77 Milan show, and made it's first catalog appearance in 1979.
Used with a version of Campagnolo's 1010B dropout taped with two screw holes, the portacatena consisted
of an aluminum rail that attaches to the inside of the dropout, and a special rear shift lever. The idea is for you
to replace your 6 speed cassette with a 5, the aluminum rail attached to the inside of the dropout takes the place of
the 6th cog. In the advent of a puncture you shift over to thee rail which should hold the chain out of the way and
make for speedy wheel removal. When I install my portacatena, I'll add more detailed photos of it on the bike and in
action as well as a better description of it's function.
 
Back
Top