Building front caliper brackets

[Maxim-umm]

Ok, so I'm gonna do a dual disc conversion on my 82 DOHC maxim and have searched, read, re-read, and virtually memorized the threads I could find on the site. The parts I'm using are from a '97 FZR600 (at least that's what the auction said...) I have both front calipers, the m/c (came with calipers) and the rotors will be here Tuesday. My big question on all this is.....What type aluminum plate should I use for the actual brackets?

The plans on drewpy's thread, when he did his tracker, used 5083, but reading up on some aluminum machinability and it seems it's a little harder to work with. Would 6061 be ok? Or is is not "strong" enough for this type of application. Am I mixing up terminology (machinability = workability)? Reading a lot of this info is confusing to me and, well, it's a lot of info to try and learn. I'll keep searching around the web, but I thought I'd try here as well. Thanks all!

 

[drewpy]

don't be too hung up on the ally, I think i came up with 6061-T6 or 6082-T6 as the old T5 is, well, old.
T7 is Aerospace stuff

 

[Maxim-umm]

Awesome, thanks drewpy! I just wanted to make sure I didn't get something that wasn't strong enough.

 

[esmith87]

get you some 7075-T6. Great stuff!! Strong and light weight

 

[Maxim-umm]

Thanks smith, I'm gonna try out the less expensive 6061 first (just in case I screw it up) and if it all turns out, great!! Maybe down the road I'll grab some 7075 and "upgrade" the brackets. Probably when I get another xs to work on

 

[drewpy]

Thanks smith, I'm gonna try out the less expensive 6061 first (just in case I screw it up) and if it all turns out, great!! Maybe down the road I'll grab some 7075 and "upgrade" the brackets. Probably when I get another xs to work on

make it out of ply first and see how it fits. Use washers to fettle the distances etc. then cut the alloy

measure 4 times, cut once

 

[Maxim-umm]

I'm gonna start with a cardboard template, then plywood, then alloy. That way I can make general corrections with cardboard, some finer fitment adjustments with the ply and washers, then hopefully mess with the alloy once.

Also, I was suppose to get my rotors today. Turns out they've been delayed for some reason and now I won't get them until the 6th. ......laaaammmeee.........

 

[Maxim-umm]

finally got the rotors!! will probably start working on the cardboard template tomorrow and move to ply. one problem though, I can't find the right bearings for the front wheel. anybody know what bike uses 42x17x13 (od x id x w) bearings? or what the all balls part number is? I'm gonna send them an email as well. Just thought I'd touch base here first.

 

[drewpy]

what you need is the international bearing number. then buy off ebay or where ever.

guide here
http://simplybearings.co.uk/shop/faq.php?cID=1

 

[Maxim-umm]

ah, happen to know what that would be...? or what bike uses that size or similar? I'll keep searching as well.

 

[drewpy]

added linky

 

[Maxim-umm]

Thanks!! That's gonna help a ton!

 

[Maxim-umm]

I've searched for hours and hours trying to find the right info (probably not using the right keywords), then drewpy comes and posts this link....done in 5 minutes. Ridiculous But big thanks for that.

 

[drewpy]

I've searched for hours and hours trying to find the right info (probably not using the right keywords), then drewpy comes and posts this link....done in 5 minutes. Ridiculous But big thanks for that.