Hondo6

I hate to say this, @mrv - but if you're looking to replace your 7370 freehub with a 7-speed Hyperglide or HG/UG freehub, that may not be possible.

Here's a link to the EV for that hub:

https://si.shimano.com/en/manual/sea...odel=FH-7370-R

If you look at the EV, the hub body shows a short hollow tube/bushing protruding from the hub body where the freehub female splines are located. Nowhere does the EV show a mounting bolt that would thread into the hub body to secure the freehub.

I think - but I have to say that I'm not completely positive - that the presence of that tube/bushing and absence of any mounting bolt means this hub has one of the 1st generation Uniglide freehubs. These first generation UG freehubs were apparently held on to the hub body by a combination of press fit, the axle, and the axle bearings/locknuts. You have to replace these with another freehub with a similar interface. And while standard 34.6mm threaded Uniglide hubs of this type were made (5- and 6-speed, I think), I don't believe any UG/HG versions were ever made.

I will shortly have the tool (more precisely, two copies of the tool) used to remove and replace these freehubs. One may join the group called the "Bike Forums C&V Traveling Toolburies" at some point in the future. But removing the existing freehub won't be much help if you don't have a suitable replacement.

Best strategy here might be to get a 7-speed HG cassette, disassemble same (saving all the cogs and spacers), and file down the wide spline on the 6 largest cogs. Then obtain two UG outer cogs of the suitable type for your hub (the second for a spare; dunno if that one uses 32mm or 34.6mm threads for the outer cog) and run with those sprockets on your existing hub.

Maybe someone who's dealt with this issue in the past can help out here?

shoota 

Is this the right one?

rccardr 

Looks to me like a large hole first cog. Ask the seller to measure the ID on the 12 tooth.

shoota 

I am the seller 🤣
ID is 33.7mm

rccardr 

Ok, so not DA, which requires a smaller ID first cog. The rest will fit, tho.
Did check my cog stash and have a complete NOS large hole 6 speed cassette of 13-15-17-19-21-24. Not DA, but new.

mrv 

rccardr I'll message you about your NOS 6spd. Looking at SheldonBrown's cassette crib sheet, I think the overall width might be an issue.
shoota - I'll message you: Do you have the spacers for 7 speed? Looks like 1/3 of a Hand - Lost Screw has the thread on cogs (13t and 14t) for about eBays price.

Thanks everyone else for your comments. BikeForums keeps proving to be a deep well of good helpful info!
A couple other comments: - why did I scoop up this hubset: the rear spacing on my TREK420 is 126mm. I've got a 600 Arabesque group on the bike (less the crankset & headset...). So I thought the hubs would compliment everything pretty easily, and free up the wheelset on the bike for something else.
Ans I've got a Dura Ace crankset I am planning to install - so it'd be nearly all SHIMANO. I'll get there eventually, where ever it is I'm going.

USAZorro

Here's the odd request of the week. Building up a 1970-ish Carlton Corsa and come to learn, that it likely came with a 25.48 Sturmey Archer seat pin. I have a 25.4, but it just gets swallowed. If anyone happens to have one that's available, I'd rather do that than do the e-Bay thing from the UK.

Cheers,

Z

Mad Honk 

Z,
I have an SR Laprade that measures 26.4 and has some oxidized markings on it. I can use the 3M Scotchbrite rough wheel to shave it down by a mm and then give it a satin finish. I would suggest that it get a light coat of clear to keep oxidizing down with the satin finish, but either way it would work. Length is seven inches. Lemme know, Smiles, MH 812-336-3283

VintageSteelEU

What's the diameter you need? Not sure what I have at the moment as I was doing a clearance some time ago. I think I have NOS SR Laprade in 26.8, might have some steel ones with separate saddle clamp. Might have some other aluminium ones, but would have to check. Shipping would be from the UK.

USAZorro

I appreciate the help offers. What I am looking for is Twenty-five point four eight mm in diameter. I see a few for sale on eBay UK, but thought I would try here first. Apparently, only Sturmey Archer made them, and they seem to have been used in a handful of British-made models - including the said Carlton Corsa (which is probably the inspiration for the Raleigh Grand Prix). Worst case, I'll either shim a 25.4 or spend a bit of quality time sanding down a 25.6. Unmolested, neither of these sizes are quite right for the seat tube.

Thanks,

Z

clubman 

Brass seat post shims were popular at the time.

dddd

Seatposts are undersized to provide extra clearance in the seat tube clamping area.
Any of the cheap, Ebay-sourced 25.6mm Chinese/Taiwanese posts should measure about the same 25.51mm as the one that I bought for my Steyr.
I did find that I had to file away a couple of brass drips from inside of the seat tube lug area using a few swipes of a half-round file.


I later bought a similar 25.6mm post for my Steyr-built 1968 SEARS TEN-SPEED, it measures 25.52mm.

oneclick 

Just got a nice colour pump to match a bike I painted, but t's missing the aluminium bit that covers the bottom.




Doesn't have to be a Primus, I'm pretty sure one of the bits from an Impero will fit - so I'm looking for either that or a broken/useless pump from which to salvage one.

It actually works fine as is, but the bike it's to go on is quite blingy, and so it would suit:

USAZorro

Thanks for the suggestion and sharing your experiences. I'll take a look. Still would prefer the old style seat pin if one's available.

unworthy1

I might have one (it would be Silca if I find it) but...you're in Canada, right?
The shipping, even for such a small and lightweight parcel, could kill the thrill!
But if you don't find one from somebody in country, LMK and I'll make a search

ehcoplex 

Anyone have a spare Campagnolo Record hub (rear, small-flange) dust cap? My calipers are cheap Harbor Freight junk, so I'm not sure the measurements are 100% accurate, but...
OD 27.8mm
ID 17mm
Thx!

Mad Honk 

ehcoplex,
Gimme a call I have some. Smiles, MH 812-336-3283

ehcoplex 

Cheers, I'll get in touch tomorrow sometime. But you might want to edit out your number- this being the internets, etc..!

Schweinhund

Maybe you should Google his number

ehcoplex 

Ah, right you are. I get such a constant stream of annoying robo-calls, telemarketing crap, etc, that I'm a little sensitive to phone-number 'exposure'!

smontanaro 

If you've been on the internet for "awhile" your info is out there from a more innocent time when we actually published contact info.

Mad Honk 

Folks,
If you punch in my name three page of references about me come up, and I am sure my phone number is in that jumble of stuff. I am a Professional Golfer that specializes in golf club making and golf club fitting. Most of the organizations that I have belonged to as a professional have my information posted on their websites. I know that BF doesn't like to show names and such, but I am pretty easy to find on the net so I may as well just put it out there. Smiles, MH

malcala622

I heard you'll be staring down the barrel of a golf club if you google Mad Honk. Very nice guy

degan

ISO early campy ergo group. 8 speed, give or take. Must include brifters/FD/RD. Brakes/HS a plus. Wheelset only if you're in the SF Bay area and can meet. Still early in the build, so the exact group is still up in the air. No need for show pieces, but decent rider condition.

Have lots of parts/frames to trade, plus I work at a co-op and can get some random stuff if need be.

oneclick 

There's a trick to making a shim from flat stock.

You need a lip on one end to bear on the top of the seat-tube, to keep it from falling down.

The trick is to fold the long edge of the strip - twice usually unless the stock is thick - before forming it into a circle.

With the lip on the outside, of course.