Rear Wishbones

[bkelsall]

Hi all,

Can anyone tell me the difference between LA272 (FS2 Std rear wishbone) and UM521. Length etc? And also the difference between um519 (FS2 stock rear hub) and UM516.

Cheers!

[carlin]

Originally Posted by bkelsall

Hi all,

Can anyone tell me the difference between LA272 (FS2 Std rear wishbone) and UM521. Length etc? And also the difference between um519 (FS2 stock rear hub) and UM516.

Cheers!

Ben the UM521 is the substitue for the LA272 nothing really diff jus you cant get them in the UK yet.
Not to sure on the hubs though as i run the alloy 0deg ones

[bkelsall]

Cheers Roberto.

[bkelsall]

ignore the q abou the hubs... its the P/N for the alu hubs... im being a mong.

[RogerM]

Not 100% sure but I think the FS2 uses the hubs from the RB5SP2 / UMW517 conversion. If that is the case it uses the revised hole positions which are effectively half a hole spacing further outboard (i.e. the extra holes on the ali hubs) so that is the difference.

As for the wishbones 521 comes with an RB5 front wishbone on the tree and the LA272 comes with a ZX5FS/SP front wishbone on the tree.

As I say I am not 100% sure because I don't run either the RB5-SP2 or ZX5-FS2 as they both arrived too late for me to change to this season (I have a rule that the chassis I am running at the point I enter the season is what I use all season as I get no time to test mid season ... no matter what improvements come out)

Nick Caro will know for sure, he runs both SP2 and FS2.