Retro Bob said:OK... trying to fit a headset to a Raleigh Competition (circa '73 or
'74). I don't have the old headset and no history on the frame. I
am getting a bit confused.
The Headset that was stock on the 73/74 competition is a Brompton
headset. I have 3 of them. Unfortunately for you, I have 2 raleigh
competitions of that era and a gransport, so I need all 3 of them.
They have an 8-sided _thin_ top race, a fairly generic and thin lock
nut, and they are low-stack headsets, probably in the 30-35 mm range.
http://www.biketrax.co.uk/product/00526/c5be5db4148698b7266be3466ff1c895/
My headsets say "Brompton" inside of the lower cup. It's possible to
take your fork to a bike shop to get the crown race cut down, but if
Bromptons are still available, why not use original parts ??
If the gipiemme headset is an accurate copy, the stack height will be
too high anyway so you should stop what you're doing and look for a
low-stack headset.
Contact me through email if you need more details.
- Don Gillies ( [email hidden] )
San Diego, CA