5 weight oil replac...
 

  You don't need to be an 'investor' to invest in Singletrack: 6 days left: 95% of target - Find out more

[Closed] 5 weight oil replacing 7.5?

13 Posts
10 Users
0 Reactions
192 Views
Posts: 0
Free Member
Topic starter
 

Will it make any difference in an open bath 55 rc3 ti, if so by much?


 
Posted : 15/04/2014 4:29 pm
 LoCo
Posts: 0
Free Member
 

less rebound less compression


 
Posted : 15/04/2014 4:30 pm
Posts: 0
Free Member
Topic starter
 

thanks simon, im guessing being 9.5 stone and using no compression this wont matter? only reason is i can get 5 weight easily as apposed to having to order 7.5


 
Posted : 15/04/2014 4:34 pm
Posts: 0
Full Member
 

Apparently there isn't a standard for oil weight, so one brands 5w could be as viscous as another's 7.5w.


 
Posted : 15/04/2014 5:10 pm
 poah
Posts: 6494
Free Member
 

depends on the viscosity index of the oil. some 7.5wt oils are as thin as 5wt


 
Posted : 15/04/2014 5:19 pm
Posts: 0
Free Member
Topic starter
 

minefield... so dump it in and adjust compression/rebound to suit. 😀


 
Posted : 15/04/2014 5:23 pm
Posts: 91000
Free Member
 

If you can dial the damping up a bit, then it'll be fine obv.

If you are already on max compression then no.


 
Posted : 15/04/2014 6:08 pm
Posts: 0
Full Member
 

I've used this since reading into this stuff here and on mtbr. Fox 10w is heavier than some 15w for example

http://www.peterverdone.com/wiki/index.php?title=Suspension_Fluid


 
Posted : 15/04/2014 6:21 pm
Posts: 5720
Full Member
 

I approached my local Motocross race team to buy some fork oil and they only had 10wt and 5wt. Apparently if they need 7.5 they just mix 5wt & 10wt 50:50. ❓


 
Posted : 15/04/2014 6:46 pm
Posts: 0
Free Member
Topic starter
 

great, thanks for help folks.


 
Posted : 15/04/2014 7:13 pm
Posts: 13942
Full Member
 

I've been thinking about putting a heavier weight (or higher viscosity) oil in my open bath Floats to give them more compression damping (I can then turn the rebound damping down a bit).


 
Posted : 15/04/2014 7:25 pm
Posts: 357
Free Member
 

Maxima racing 7 weight fork oil has v similar sae and what I use in all my zocchis. Not too dear either.


 
Posted : 15/04/2014 7:32 pm
Posts: 9
Free Member
 

welshfarmer - Member

I approached my local Motocross race team to buy some fork oil and they only had 10wt and 5wt. Apparently if they need 7.5 they just mix 5wt & 10wt 50:50.


Apparently that will get you close, but it isnt quite that simple. I think its something like 2/3 10wt to 1/3 5wt to get 7.5.
That peterverdone link is quite useful.


 
Posted : 15/04/2014 7:35 pm
Posts: 5720
Full Member
 

The 50:50 was my assumption to be fair. They just said that they mix the 2 weights to get the other weight. They probably know what they are doing being one of the big Motocross teams on the UK circuit


 
Posted : 15/04/2014 8:00 pm

6 DAYS LEFT
We are currently at 95% of our target!