Blue spot calipers

[bendy3]

Hi, does anybody still make those caliper brackets to fit blue spot calipers?
http://www.ebay.co.uk/itm/fzr-400-race- ... 4170ed1870

[Evilchicken0]

I think Kayla had a look at them but siad it wasn't just a case of the bolt spacings, the caliper has a different offset as well.

I think I saw NK Racing did them for an RD and I "believe" the RD has a similar mounting to the 3TJ - that means it needs measuring and confirming

[hunter]

It wouldn't be complicated to make the by hand.

[Evilchicken0]

I use standard calipers with a radial master, braided hoses and EBC HH pads - the master is a bit strong at 19x20 a 19x18 would be much better - it stops hard enough

[Kayla850]

Hi, does anybody still make those caliper brackets to fit blue spot calipers?
http://www.ebay.co.uk/itm/fzr-400-race- ... 4170ed1870

Those ones in the link need either the caliper or fork leg to be relieved by 2mm or so, but they do work. You need to machine the adapter from a block of 25mm thick aluminium to get the offset needed, with the caliper and fork leg mounts separate from each other, ie you can't use the lower fork leg mount to fix the caliper in place because of the offset.

[Evilchicken0]

Hi, does anybody still make those caliper brackets to fit blue spot calipers?
http://www.ebay.co.uk/itm/fzr-400-race- ... 4170ed1870

Those ones in the link need either the caliper or fork leg to be relieved by 2mm or so, but they do work. You need to machine the adapter from a block of 25mm thick aluminium to get the offset needed, with the caliper and fork leg mounts separate from each other, ie you can't use the lower fork leg mount to fix the caliper in place because of the offset.

Is the offset 2mm or so out from the fork leg or into the wheel ?

[hunter]

The caliper mounts on the inside of the mounting lugs,
IT looks like the caliper and plate are attached to the lower lug with one bolt,
So basically if you mounted a 8 or 10mm plate to the fork leg with holes drilled with the correct spacing,
And a spacer to account for the offset of the caliper top mount.

[Kayla850]

The caliper mounts on the inside of the mounting lugs,
IT looks like the caliper and plate are attached to the lower lug with one bolt,
So basically if you mounted a 8 or 10mm plate to the fork leg with holes drilled with the correct spacing,
And a spacer to account for the offset of the caliper top mount.

Yes, but as I've said in a few previous posts, the blue spot caliper or the fork leg needs to be machined by 2-3mm to allow for the fact that the 83mm calipers/forks have a slightly different offset to the 100mm ones, ie 83mm calipers would sit slightly too far 'out' if they were fitted to 100mm forks, and 100mm calipers sit slightly too far 'in' if fitted to 83mm forks.

Those adapter plates work but they do require that either the caliper or fork mount are machined to suit. The 100mm caliper needs to sit slightly 'out' from the disc, relative to an 83mm caliper, and no amount of hanging off a breaker bar trying to torque things straight or swearing at the bike can change that (I point any readers towards the 'How to fit the 600 into the 400' thread for evidence of people suggesting that things would be 'ok' if you wring the mounting bolts up tight enough )

[Evilchicken0]

Like this ?

[hunter]

The caliper mounts on the inside of the mounting lugs,
IT looks like the caliper and plate are attached to the lower lug with one bolt,
So basically if you mounted a 8 or 10mm plate to the fork leg with holes drilled with the correct spacing,
And a spacer to account for the offset of the caliper top mount.

Yes, but as I've said in a few previous posts, the blue spot caliper or the fork leg needs to be machined by 2-3mm to allow for the fact that the 83mm calipers/forks have a slightly different offset to the 100mm ones, ie 83mm calipers would sit slightly too far 'out' if they were fitted to 100mm forks, and 100mm calipers sit slightly too far 'in' if fitted to 83mm forks.

Those adapter plates work but they do require that either the caliper or fork mount are machined to suit. The 100mm caliper needs to sit slightly 'out' from the disc, relative to an 83mm caliper, and no amount of hanging off a breaker bar trying to torque things straight or swearing at the bike can change that (I point any readers towards the 'How to fit the 600 into the 400' thread for evidence of people suggesting that things would be 'ok' if you wring the mounting bolts up tight enough )

Easy fix then.