156vido

Hello. I have an old bike which i cannot identify. It should be more than 35 years old. It has a white text "sport" on the frame. On the back rim says "Velo" and "Made in Czechoslovakia". The head badge is missing. It has Weinmann brakes. And that is all.

View image: 2014 10 14 17 29 30

cb400bill

Try turning it around so we can see the drive side. Also, close up pics of any components can't hurt. Just a guess, it may be a Favorit.

156vido

Here are some more images:

View image: 2014 10 20 13 16 53
View image: 2014 10 20 13 17 06
View image: 2014 10 20 13 17 19
View image: 2014 10 20 13 18 05
View image: 2014 10 20 13 18 27
View image: 2014 10 20 13 18 31
View image: 2014 10 20 13 18 50
View image: 2014 10 20 13 19 15

juvela

frame appears to be constructed with all Agrati bits; lugs, shell, crown, bulge-formed head.

are there any markings on the hub barrels? perhaps Eska on the rear one?

are there any markings on the gear block?

156vido

Only Sport and Velo are the markings on the bike.

View image: 2014 10 21 10 40 01
View image: 2014 10 21 10 41 58
View image: 2014 10 21 10 42 07
View image: 2014 10 21 10 42 13
View image: 2014 10 21 10 42 18
View image: 2014 10 21 10 42 52
View image: 2014 10 21 10 42 36
View image: 2014 10 21 10 43 53

juvela

hello 156vido,

good job with the detail photos, thank you!

the frame's fork crown is an Agrati model which is proprietary with Chiorda afaik. this would imply a Chiroda built bicycle, regardless of how originally badged. they did a great many builds for other names.

one doesn't usually see Weinmann calipers with this much corrosion. almost looks like a machine which was stored near the exhaust vent for a clothes dryer.

the bicycle's stem & bar set may have been made by either Agrati or by Schierano. handgrips appear they may be Rampinelli (REG). REG may also be the maker of the brake lever sleeves. crankset is likely Agrati. have you removed the machine's bottom bracket fittings as yet? there will likely be a mark in the center of the bottom bracket spindle. it may be a "C", "OMG" or "AGRATI."

one thing you could do which might advance the identification process would be to make a closeup photo of the cycle's head tube from straight on. this would show the holes for fastening the headplate and perhaps a "ghost image" of the headplate's shape. you could measure the distance between the holes so that readers could check this against plates in their collections.

is there a decorative pattern on the seat binder collar; interlocking rings for example?

what wheel size does it look like the frame was built for; 650 or 700? noticed that brake pads are at the bottom of their travel on the front and in the middle of the slot on the rear. wonder if both wheels same size.

156vido

Thank you, very helpful information. I made some more pictures of front head plate. The "ghost image" "should look" like this View image: 2014 10 24 11 30 45.
Some other images:
View image: 2014 10 24 11 26 45
View image: 2014 10 24 11 26 58
View image: 2014 10 24 11 27 09

The distance between the center of the holes is 45 mm, shown in image: View image: 2014 10 24 11 29 27

I have removed every thing from bike. I didn't find any of markings on bracket spindle, no marks.

About the wheel size, they are both 28", 700. The back Wheel seems to be original, but the front one i think it has been changed later. Also no decorative pattern on the seat.

juvela

thanks for the additional pictures and information 156vido.

great job with the photos.

headtube photos and measurement may advance the identification process.

since you have the bottom bracket fittings now out have you checked the thread? the Agrati bits would tend to suggest an Italian origin for the bicycle. if the bicycle is Czech like the wheels one would expect BSC dimensions.

juvela

forgot to ask - what does the fixed cup look like? is it round at its outer edge with three dogs/notches; or does it have one or more pairs of flats?

we have not mentioned dating. suspect machine is from the 1955-63 period. not a very narrow bracket i know!

headplate background - having the shape from your very good pictures may be helpful. there seems to have been one firm in Italy which manufactured the headplates for a great many different marques. they had a selection of standard blanks a cycle manufacturer could choose from. or they could do a "custom" shape at greater cost. am not presently where my headplates abide but will be able to take a gander next week. the 45mm vertical spacing will narrow things down a good deal...

any information on the bb threading? and what about seat post diameter, something like 26.0mm?

juvela

hello again 156vido,

checked me headplate collection and found nothing close. interestingly, most of the italians with two fasteners place them left-right rather than top-bottom.

in one of your excellent pictures it appears there may be a tiny bit of headplate material remaining under the rivet head. looks to be aluminum. most of the italians of this era are brass.

have you made any measurement of bb shell as yet? any new developments?