late 80s/early 90s time trial bikes

[ScillySuffolk]

Tri-bars weren't legal for use in TT's at that date. I think they became 'legal' in '91 (or close to 91 anyway)...

Sorry, I didn't phrase my question very well.

Why did you use bullhorns rather than ordinary drops? Bullhorns with tri bars makes sense, because the tri bars replace the drop (for aero effect), but on their own I can't see the advantage.

On a low profile frame or running a smaller front wheel I imagine that drops would put you too low, but in (for example) Ian Raleigh's photos he is running a regular sized wheelset.

 

[Ian Raleigh]

Sorry, I didn't phrase my question very well.

Why did you use bullhorns rather than ordinary drops?
Bullhorns with tri bars makes sense, because the tri bars replace the drop (for aero effect), but on their own I can't see the advantage.

At that time it was an image thing and also if you had cut down bars think of the weight saving you had made :roll:

Ian.

 

[fiks]

Tri-bars weren't legal for use in TT's at that date. I think they became 'legal' in '91 (or close to 91 anyway)...

Sorry, I didn't phrase my question very well.

Why did you use bullhorns rather than ordinary drops? Bullhorns with tri bars makes sense, because the tri bars replace the drop (for aero effect), but on their own I can't see the advantage.

On a low profile frame or running a smaller front wheel I imagine that drops would put you too low, but in (for example) Ian Raleigh's photos he is running a regular sized wheelset.

But that is a lo-pro bike (in the photo), it's just that taller riders don't need a smaller front wheel to correctly position their upturned bars.

 

[ScillySuffolk]

But that is a lo-pro bike (in the photo), it's just that taller riders don't need a smaller front wheel to correctly position their upturned bars.

You're right, it's not apparent from that angle (to me anyway).

I'm probably showing my ignorance again, but I'd have thought that taller riders would have more to gain from a small wheel?

 

[RooKilo]

Here's my 1990 Roy Cottingham lo-pro with Mavic bars on, I've got the matching tri-bars but not fitted them yet - as it's not been used in anger yet I'm leaving them off until I do as I think it looks better without


DSC01268 by Rookilo, on Flickr

 

[ScillySuffolk]

Here's my 1990 Roy Cottingham lo-pro with Mavic bars on, I've got the matching tri-bars but not fitted them yet - as it's not been used in anger yet I'm leaving them off until I do as I think it looks better without

WOW!

Most of all I love the paintjob; does that style have a name or is it a one off?

What are the calipers?

It looks like the bolts in the seat tube screw into the post?

 

[RooKilo]

WOW!

Most of all I love the paintjob; does that style have a name or is it a one off?

What are the calipers?

It looks like the bolts in the seat tube screw into the post?

Thanks! It's a yellow base coat with a pearl grey overspray, I guess done with an airbrush - I don't know if this has a name or not.

The calipers are Dia Compe AC-300G http://velobase.com/ViewComponent.aspx? ... &AbsPos=84 - nice!

There are two bolts that screw directly onto the seatpost:


DSC01285 by Rookilo, on Flickr

Here's a link to the thread about it in Readers Road Bikes: http://www.retrobike.co.uk/forum/viewto ... dc46031c7e Cheers

 

[fiks]

This frame (Roy Cottingham lo pro track) has a weird head tube arrangement. It looks like the top tube and head tube is only connected by a thin bit of metal.

https://secure.flickr.com/photos/552834 ... 182808880/
https://farm2.staticflickr.com/1300/5182810728_eb63d89093_b.jpg