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Search: Posts Made By: luns
Showing results 1 to 50 of 55
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Forum: Classic & Vintage
07-27-22, 05:43 PM
Replies: 10
Views: 808
Posted By luns

I'd be interested in seeing a picture of the...

I'd be interested in seeing a picture of the piston cup an how it's fastened. I assume the rubber cup is held on by a nut and washer, but have wondered whether it's backed up by a thin nut and...
Forum: Classic & Vintage
07-27-22, 11:20 AM
Replies: 10
Views: 808
Posted By luns

Silca used to sell a Schrader to presta adapter...

Silca used to sell a Schrader to presta adapter that looks identical to this. It looks close enough that it may well be the identical part from Silca's supplier. I keep one in my saddle bag in case I...
Forum: Classic & Vintage
07-27-22, 10:52 AM
Replies: 10
Views: 808
Posted By luns

Thanks for sharing! This pump was called...

Thanks for sharing!


This pump was called either the Silca Magnum, or the Magnum Force. I've seen it in your blue, and in white. All the white version pumps I've seen were labelled as Magnum...
Forum: General Cycling Discussion
02-01-22, 11:09 PM
Replies: 33
Views: 1,105
Posted By luns

The same would be true of any replacement rubber...

The same would be true of any replacement rubber you find for the head - it would all be NOS and your guess is as good as mine how they've been affected by age.

Although I'm skeptical, I have...
Forum: Classic & Vintage
11-30-21, 01:59 AM
Replies: 7
Views: 2,557
Posted By luns

I used to ride exactly that combination - the...

I used to ride exactly that combination - the SM-PD64 with PD-6207. I believe the cleats, when sold separately from the the pedals, included the front plate with the appropriate shape wings to mate...
Forum: Classic & Vintage
11-30-21, 01:34 AM
Replies: 53
Views: 12,650
Posted By luns

I think the crimp was factory, but didn't exist...

I think the crimp was factory, but didn't exist for all years. The pintle (Spillo as Silca called it, simply italian for Pin) was provided by an outside machine shop, as was the cap. They may have...
Forum: Classic & Vintage
11-30-21, 01:09 AM
Replies: 27
Views: 4,111
Posted By luns

I think Campy sold (part 646 as has been noted) a...

I think Campy sold (part 646 as has been noted) a thicker version of the washer that goes between the sleeve and pump body than what Silca provided. I think you were meant to crank down hard on the...
Forum: Recumbent
11-30-21, 12:40 AM
Replies: 18
Views: 11,719
Posted By luns

I don't know how broadly this was true, but back...

I don't know how broadly this was true, but back in the day (80s-90s), I understood the Zefal Husky to be just a re-labelled SKS Rennkompressor. I don't know if this still true or not - I have a...
Forum: Bicycle Mechanics
04-09-21, 01:08 PM
Replies: 77
Views: 4,065
Posted By luns

Here's a few Canadian listings for the shifter: ...

Here's a few Canadian listings for the shifter:
https://www.northernbicycle.ca/shimano-st-ef41-shift-brake-lever-combo-3x6sp-blac.html...
Forum: Bicycle Mechanics
04-09-21, 12:39 AM
Replies: 18
Views: 1,876
Posted By luns

+1 If I'm not mistaken, the hub pictured is...

+1

If I'm not mistaken, the hub pictured is an HB-6207. These were either 120.5mm for 5sp, or 126mm for 6 speed, but not meant for use with 7 speed. A 7 speed freewheel is 2.5mm wider than 6.
...
Forum: Bicycle Mechanics
04-08-21, 11:27 PM
Replies: 77
Views: 4,065
Posted By luns

With your derailleur hanger, you'd need the...

With your derailleur hanger, you'd need the direct mount version of the derailleur, not the claw or reverse claw. As for SGS, Shimano has three ranges of rear derailleur cage - SS is short, GS is...
Forum: Bicycle Mechanics
04-07-21, 10:18 PM
Replies: 77
Views: 4,065
Posted By luns

Here's the drawing: ...

Here's the drawing:

https://cimg7.ibsrv.net/gimg/bikeforums.net-vbulletin/800x600/h24dad373be974581826d63f38178d64be_4eaa455e78fbcf43f62f67d117e9fb16fc9f0aa8.jpg...
Forum: Bicycle Mechanics
04-01-21, 02:08 AM
Replies: 77
Views: 4,065
Posted By luns

I wouldn't worry too much about the OS pulley....

I wouldn't worry too much about the OS pulley. There are derailleurs with and without that were sold for use with 34t freewheels.

The Tourney RD-TY500 (which appears to have been original for your...
Forum: Bicycle Mechanics
03-24-21, 12:00 AM
Replies: 77
Views: 4,065
Posted By luns

A 7 speed freewheel has 7 sprockets, each about...

A 7 speed freewheel has 7 sprockets, each about 2mm thick, with 3mm spacers in between. So, the overall width of a 7 speed freewheel's sprockets is about 2mm + 6*5mm = 32mm. A 6 speed freewheel has...
Forum: Bicycle Mechanics
03-23-21, 08:11 PM
Replies: 77
Views: 4,065
Posted By luns

7 speed is spaced at 5mm, while 6 speed is...

7 speed is spaced at 5mm, while 6 speed is typically spaced at 5.5mm. So, removing one sprocket from 7, reduces the width by 5mm, but then increasing the spacing to 6-speed spacing adds back 2.5mm,...
Forum: Classic & Vintage
03-12-21, 04:03 PM
Replies: 51
Views: 4,629
Posted By luns

Such as?[/QUOTE] Not that I would actually...

Such as?[/QUOTE]

Not that I would actually do it, but I'm imagining decal A below (from Cyclomondo):...
Forum: Classic & Vintage
03-12-21, 12:15 PM
Replies: 51
Views: 4,629
Posted By luns

This insert appears identical to the one in my...

This insert appears identical to the one in my early '00s Super-Pista handle.

https://www.amazon.com/Z-Threaded-Insert-Soft-Wood/dp/B07V8ZS86N/

Unit cost seems very reasonable to me, but I'll...
Forum: Classic & Vintage
03-12-21, 11:46 AM
Replies: 51
Views: 4,629
Posted By luns

Thanks for the pictures! That gasket does look...

Thanks for the pictures! That gasket does look like a 323. The other end of the barrel is the same as my reversible chuck - the brass bit in the centre is a depressor to open a Schrader valve for...
Forum: Classic & Vintage
03-11-21, 11:52 PM
Replies: 51
Views: 4,629
Posted By luns

That sounds like what I remember the 323 to be....

That sounds like what I remember the 323 to be. If I remember my numbers correctly, the ID of the barrel used with the 242 gasket is around 15mm. There's one other available gasket, 252, meant for...
Forum: Bicycle Mechanics
03-11-21, 09:13 PM
Replies: 39
Views: 13,886
Posted By luns

One thing which I think is worth pointing out:...

One thing which I think is worth pointing out: this, and most gauges readily available in the US use NPT threading. Silca being not in North America, did not observe US thread standards, following...
Forum: Classic & Vintage
03-11-21, 12:44 PM
Replies: 51
Views: 4,629
Posted By luns

My best guess is the 323 would fit, but if you...

My best guess is the 323 would fit, but if you could share pictures of your gasket and better yet, measurements, that'd help.

You could also try e-mailing Silca with pictures of your chuck and...
Forum: Classic & Vintage
03-11-21, 12:19 PM
Replies: 51
Views: 4,629
Posted By luns

That would be from the last 5 years of Italian...

That would be from the last 5 years of Italian production: the aluminum barrel started in 2008 and the brand was sold to Josh Poertner in 2013.

I've read (post by guyintense on another forum) that...
Forum: Bicycle Mechanics
01-25-21, 07:43 PM
Replies: 46
Views: 5,052
Posted By luns

A 24 hole conventional hub would most likely not...

A 24 hole conventional hub would most likely not work for the reasons you state, but a 32 hole one likely would. The right flange is 16 holes, the same as the existing hub. It's hard to tell if the...
Forum: Bicycle Mechanics
01-25-21, 06:42 PM
Replies: 46
Views: 5,052
Posted By luns

I see. Yes, that's a hub flange failure, and I...

I see. Yes, that's a hub flange failure, and I agree it's the end of the road for this wheel. This hub flange design may have been workable for a 16/16 spoke hub, with the left spokes having about...
Forum: Bicycle Mechanics
01-25-21, 04:56 PM
Replies: 46
Views: 5,052
Posted By luns

Sorry to hear that. Some thoughts: Don't...

Sorry to hear that. Some thoughts:

Don't beat yourself over what you maybe ought to have done differently to prevent this. IMO, a wheel should be robust enough to easily survive anything you do to...
Forum: Bicycle Mechanics
01-19-21, 06:31 PM
Replies: 22
Views: 2,902
Posted By luns

Pictures wouldn't help me that much - I have...

Pictures wouldn't help me that much - I have several of these bodies in my possession - but I imagine they would still be of interest to others following along.

Inspired by this question, I took a...
Forum: Bicycle Mechanics
01-19-21, 05:34 PM
Replies: 46
Views: 5,052
Posted By luns

That's fine, assuming you intend to ride the...

That's fine, assuming you intend to ride the wheel with the tire on. :)
Forum: Bicycle Mechanics
01-19-21, 05:32 PM
Replies: 46
Views: 5,052
Posted By luns

Your tension numbers feel very off for what I'd...

Your tension numbers feel very off for what I'd expect for a 16/8 lacing. For a conventional rear wheel, the left to right side spoke tensions are roughly in a 1:2 ratio, which is about what your...
Forum: Bicycle Mechanics
01-19-21, 01:14 AM
Replies: 46
Views: 5,052
Posted By luns

You didn't say what wheel you have, but only list...

You didn't say what wheel you have, but only list 8 spokes left, 16 right. Is this a 24 spoke wheel or is it a 32 spoke wheel you that you only read half the left side tensions for?

I would first...
Forum: Bicycle Mechanics
01-04-21, 11:50 PM
Replies: 22
Views: 2,902
Posted By luns

I'm curious, did you have to re-space your axle...

I'm curious, did you have to re-space your axle when replacing this freehub body? I'd put a 7 speed body on my very similar 600EX freehub years ago (planning to run 8 of 9 on 7), and thought I had to...
Forum: Bicycle Mechanics
12-20-20, 08:20 PM
Replies: 38
Views: 7,219
Posted By luns

There was one time I was coasting along slowly...

There was one time I was coasting along slowly checking out a then new construction area. I started to backpedal a little to set things up to trackstand for a longer look, and in the process, the...
Forum: Bicycle Mechanics
12-17-20, 01:24 AM
Replies: 22
Views: 2,902
Posted By luns

I've only seen the Uniglide/Hyperglide transition...

I've only seen the Uniglide/Hyperglide transition freehubs in 7-sp, not 6. The 6 speed Hyperglide freehubs I'm aware of are strictly Hyperglide.
Forum: Bicycle Mechanics
12-17-20, 12:10 AM
Replies: 22
Views: 2,902
Posted By luns

Oh, I missed seeing this earlier. But I'd also...

Oh, I missed seeing this earlier. But I'd also latched onto the 'ca 1989' of the original post. The FH-1050 freehub was out in 1986 and uses a thru-bolt to hold the freehub body on: the same Allen...
Forum: Bicycle Mechanics
12-16-20, 11:47 PM
Replies: 22
Views: 2,902
Posted By luns

I doubt your disassembling the axle has anything...

I doubt your disassembling the axle has anything to do with the freehub body coming off. I'd imagine the hollow bolt has been broken for some time already and the freehub body held captive by the...
Forum: Bicycle Mechanics
12-02-20, 11:43 PM
Replies: 26
Views: 3,159
Posted By luns

The more I think about it, the worse it gets. On...

The more I think about it, the worse it gets. On a conventional chain, the outer links are solidly joined to the pins and there is no wear between them. The inner links of a bushingless chain rest on...
Forum: Bicycle Mechanics
12-02-20, 11:16 PM
Replies: 26
Views: 3,159
Posted By luns

It can't possibly work that way. As the chain...

It can't possibly work that way. As the chain wears and its pitch increases, the pitch circle diameter increases and the centre between pin pairs will be higher up the tooth. When the pin pair is...
Forum: Bicycle Mechanics
12-02-20, 06:23 PM
Replies: 26
Views: 3,159
Posted By luns

I see no merit to this design, whichever way I...

I see no merit to this design, whichever way I look at it. I just see a bunch of smoke and mirrors.

First, if there are truly two pins making contact per tooth, only one of them is transmitting...
Forum: Bicycle Mechanics
11-13-20, 01:39 AM
Replies: 6
Views: 2,522
Posted By luns

Accushift is not a model, it's their name for...

Accushift is not a model, it's their name for indexed shifting, equivalent to what Shimano called SIS. There are many different Accushift shifters just as Shimano had many different SIS shifters.
...
Forum: Bicycle Mechanics
11-09-20, 11:28 PM
Replies: 16
Views: 1,317
Posted By luns

Looks like this is too late for the OP, but...

Looks like this is too late for the OP, but hopefully this can still help somebody finding this thread in the future.

I only remember doing this with Shimano freehubs (I may have helped a friend...
Forum: Bicycle Mechanics
10-31-20, 03:06 PM
Replies: 12
Views: 2,360
Posted By luns

The threads on the cap should thread onto a...

The threads on the cap should thread onto a schrader valve, and the face of the rubber should seal against the face of the valve. The threads wouldn't come into play with a presta valve, being too...
Forum: General Cycling Discussion
10-09-20, 11:26 PM
Replies: 28
Views: 6,984
Posted By luns

They've all leaked for me while inflating. This...

They've all leaked for me while inflating. This makes any pressure gauge on a floor pump much less useful as you can only guess what pressure you've reached since the gauge doesn't hang around at...
Forum: General Cycling Discussion
10-09-20, 04:37 PM
Replies: 28
Views: 6,984
Posted By luns

I see these all the time, but have never, ever,...

I see these all the time, but have never, ever, been satisfied with any that I've tried.They always leak on me! I don't know whether people just accept the leaking, or if all the ones I've tried have...
Forum: Bicycle Mechanics
10-09-20, 04:25 PM
Replies: 19
Views: 2,952
Posted By luns

I had a closer look at my head, and between that...

I had a closer look at my head, and between that and JaccoW's picture, I think my understanding of the later heads was wrong. Things look to be more alike between early and late than I previously...
Forum: Classic & Vintage
09-28-20, 05:33 PM
Replies: 27
Views: 6,886
Posted By luns

Wanted to include this image with my first post,...

Wanted to include this image with my first post, but didn't have enough posts to do so until now.
...
Forum: Bicycle Mechanics
09-28-20, 04:32 PM
Replies: 19
Views: 2,952
Posted By luns

The guts of the HPX head changed, possibly more...

The guts of the HPX head changed, possibly more than once, over the years. I think the earliest heads were identical to the HP that the HPx replaced. These heads used different stacks of parts for...
Forum: Classic & Vintage
09-23-20, 12:31 AM
Replies: 8
Views: 1,507
Posted By luns

The last harlequin wrap that I did was Newbaum's...

The last harlequin wrap that I did was Newbaum's tape over a base of tattered used cork tape, and turned out much nicer than I expected. The cork provides cushioning that the cotton tape didn't,...
Forum: Classic & Vintage
09-22-20, 11:58 PM
Replies: 3
Views: 1,002
Posted By luns

I realized a few things doing my first Harlequin...

I realized a few things doing my first Harlequin wrap that I haven't seen described anywhere:

First is that the way the two strands of tape weave with each other, you basically have half of the...
Forum: Classic & Vintage
08-21-20, 02:06 PM
Replies: 21
Views: 4,346
Posted By luns

So was Dura-Ace. There were at least three...

So was Dura-Ace.

There were at least three series that used the 600EX name. 600EX Arabesque (SL-6200) and New 600EX (SL-6207) were friction. 600EX SIS (SL-6208), well, you figure it out.
Forum: Classic & Vintage
08-20-20, 02:16 AM
Replies: 27
Views: 6,886
Posted By luns

I did some more digging. The old Silca actually...

I did some more digging. The old Silca actually had a scan of their 1960 catalog on the web around 2006 or so in a SWF file where you could drag the corner of the page across the screen to flip...
Forum: Classic & Vintage
08-17-20, 06:35 PM
Replies: 21
Views: 4,346
Posted By luns

I'm not sure what I'm missing, but most of the...

I'm not sure what I'm missing, but most of the replies in this thread don't seem to address what I read of the question. rccardr did hit the nail on the head though.

The 7401 shifter pod will fit...
Showing results 1 to 50 of 55
 
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