Evenin all!
Quick question-
My gemini front axle is 35 mm in diameter. What size u bolts do i need to hold my buggy springs on with? Ones with a 35mm inside diameter? Slightly larger? And what size should they be as regards Metric thread size- are m6 stainless bolts enough? M8? M10? Mild steel?

Ive been looking all over the place with frustratingly low levels of success; m6 thread, 35mm inside diameter stainless bolts seem reasonably easy to source, m8 that are long enough almost impossible, 37mm inside diameter is easy to find but maybe too loose.

To say im a bit confused is an understatement....

Tanks in Advance! ;c)
Rich

Ah right- how do you bend them? Do you have to heat them up first to bend them or is cold forming used? And what are they made from?
Soz for being a bit thick. Im new here... ;c)

Groovy,: ill take a look. I made some perches over the weekend, i think ill have to configure mine the same way. Otherwise the tie rods tend to interfere with the chassis on the way to the pitman arm.

A M8 die nut might make threading in situ easier, start it with a socket, and finish off with a spanner: https://www.ebay.co.uk/itm/1-25mm-Hexagonal-Die-Nut-Metric-M2-M3-M4-M5-M6-M7-M8-M10-M12-1-0-1-25-1-5/261784646595?hash=item3cf394b3c3:g:jwIAAOSwVLRaW6MJ.


Edit: just had a quick look on ebay, would these suit: https://www.ebay.co.uk/itm/U-Bolt-M8-x24-mm-Thread-35-mm-Inside-Diam-59-mm-Inside-Height-BZP/122511906456?hash=item1c86475698:g:PQUAAOSwOVhgHAm-

I think ive sorted some now; thanks must go to rhys for phoning me up with some words of wisdom this morning, and stefan for his kind offer to bend me some up on his jig.. cheers chaps!!
 As it is ive found some off the shelf ones that will do the trick for the test and setup phase, before i get my heavy engineering chum to weld me some bits to my axle. Hes also quite the petrolhead, and gave Bridget the Riley a lift home in his van back to my shed this afternoon after getting her all glued up in the warm at work over the weekend. Im hoping to infect him with the CK bug over the coming weeks and then get him to build something. He builds Cyclotrons for a living, and various other high energy physics equipment, so building a CK should be a piece of cake for him... at the very least Bridget fits in the back of his van an absolute treat, which could be useful... ;c)

Shout if you want photos or measurements.   Chris Slade (ERA)  left his castor adjustable, at least to start with, not sure if it still is.  Hopefully Chris can fill in the details.

Yes I made some supports using the Rhys design from 3x1 box with the intention of welding them to the axle once I was happy with the set up.  I use 6mm made up U bolts and so far the axle has never slipped or rotated so I haven't found the need to weld it up. The benefit is that I have been able to test a number of varying castor angles until I found the one that suited me best. I did find the handling was significantly affected when I tried different settings.

Hey, we're practically neighbours!  and Geoff (Wolseley Hornet) is right in the middle!  You'll have to come for a nose when we get unlocked.

I have attached a pointer to my axle (see pic) which makes it easier to make adjustments and also serves as a visual reference to check that it hasn't rotated in use.