Any question answered...

hex bolt skewer.

Use a Shimano QR if you're concerned about holding power, they provide more clamping force than you can get with a bolt type skewer. You can, as an alternative, tap the axle with M6 thread for fixing bolts.

I've got an old SD card that used to live in an android phone. I now want to repurpose it for a digital photo frame.

I can't move files onto it.

I've tried wiping it.

When I check it says it's fat32.

I also tried reformatting it.

I've tried putting it in my current phone and selecting the option to allow it to be used as portable storage rather than for the phone.

Any ideas?

Switch on the side?

Use this (if you are on WIndows) https://www.partitionwizard.com/free-partition-manager.html to delete everything, create a new partition and format it. If you're not on Windows, Gparted is probably the way to go.

Or the photo frame doesn't support a card that large.

Sorry, it'll be micro SD for a phone I'm guessing. Encrypted for internal storage somehow? Proper partition/formatting software (gparted is good on linux) worth a try? Or they're like a few quid now for new ones.

Jinx.

Although if it's an SD card adapter for the photo frame they do have a lock switch on the side.

Cheers guys.

Yes it's a micro SD card - but who knew there was a lock on the side?

I was using Gparted, but for some reason it just wouldn't play ball. I might grab a windows laptop and give partition wizard.

It would be good if I could use this as it's only 4gb and older, so it's not going back in a mobile and is no use for a camera...which doesn't leave much else!

Can't remember the BCD measurement of this.
Can someone help please?

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You should be measuring through the centre.

Edit: From the photos it looks larger than 144mm, but the only reference I can find to such a thing is on Sheldon. That lists 151mm, but describes it as "Very old Campagnolo standard (pre '67) (Obsolete)".

https://www.sheldonbrown.com/cribsheet-bcd.html

Measuring between two adjacent holes can work. Bit hard to tell with your tape measure lining up on the imperial edge rather than the metric, but looks yours is 151mm or 144mm BCD?

Cheers

I think it's a 144BCD

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It looks like 151 mm to me. 88.8 mm between adjacent holes and 143.6 mm between 'opposite". It can't be 144 BCD if it's already >140 mm between two bolts.

Either measure between two bolt-holes that are next to each other and refer to Sheldon's crib sheet, or on that chainring you could measure from one bolt hole to the middle-centre of the banana-shaped slot between the bolt-holes exactly on the opposite side of the chainring.

Looks like am ols Sugino Competition.... Campag copy from the 70's

Came as 144 and 151

http://velobase.com/ViewComponent.aspx?ID=1281A8A3-5568-4D04-82AE-966EB77B2515&Enum=122&AbsPos=7

Never saw a 151 jobby BITD....

might grab a windows laptop and give partition wizard.

Assuming you access the microSD card via an adapter / card reader -
indeed get a free copy of Partition Wizard 10, this should see the card as a volume,
go ahead and right-click on the partition(s) of that volume and erase.
Apply. Then create a (one) new partion.

Can someone help please?

Do the maths. There are numerous ways to skin this cat, here's an example using the cosine rule.

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• do_the_maths.pdf

A pictorial approach using Corel Draw: the yellow circle is a 100mm reference with no allowance for foreshortening, red circle is an average of outer and inner perimeters of the bolt holes (line thickness was later increased to make it visible in the photo)
Most of the error is due to the camera having a relatively short focal length, but measuring your photo and scaling gives a BCD of 143.7mm - say 144mm with an error in measurement of 0.2%, which is probably as accurate as you'll get with a tape measure.

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I use a 130 sturmney archer track hub in a 135 frame, axle is long enough

Sounds promising. 165mm axle on that hub?

Edit - just found the SA hub on SJS site - 175mm axle; should have got that!

I have a laptop, which I think is working apart from the screen (I can hear the windows welcome noise when it starts up). If find a monitor to plug it into, will it automatically output onto that?

Yep. If it doesn't do so automatically, you can toggle between display modes using Windows key + p to get it outputting to an external screen.

There's also normally an option on the function keys, generally something like Fn+F8, the key should have a little picture of a screen or something.

Cable pull on 9 speed Campy from 2000 is 3.0 whilst 10 speed is 2.8.

Will a 10speed rear derailleur work on 9 speed levers as the it's just a 0.2 difference?

Calling on the power of @mdcc_tester

Cable pull is not relevant, derailleur shift ratio is. It should work as they both use the same 1.5 derailleur shift ratio. (If you're sure it's 3.0mm, not 3.2mm, that is. If it's 3.2mm it won't work.)

we will refer to the systems as Campy “old” and Campy “new”. Campagnolo changed the shift ratio and cable pull between the two systems. 8-Speed systems are Campy “old.” 9-speed systems come in both varieties. The “new” 9-speed systems were produced after 2001. Most likely you have a newer group, but if you are unsure, old-style controls are absent of graphics or have the groupset name on them and new-style will be printed with “9-speed.” Newer 9-speed derailleurs moved the “B” adjuster screw down by the cage, as opposed to the old-style that places it where Shimano derailleurs typically have it by the frame and mount point. After that its easy, 9/10/11-speed systems are all the same. Just match the number of gears on the cassette with the number of clicks in the lever (minus 1, because 10-speed shifters make only 9 clicks) and you are good to go. The derailleur ratio remains the same across the range.

http://blog.artscyclery.com/science-behind-the-magic/science-behind-the-magic-drivetrain-compatibility/