The BSA A7-A10 Forum

Technical (Descriptive Topic Titles - Stay on Topic) => Frame => Topic started by: BSA500 on 09.07. 2021 13:09

Title: Which fork oil when using two way damping
Post by: BSA500 on 09.07. 2021 13:09

Ok which fork oil do people use when using the two way dampimg rods and progressive springs. Its on a A7SS 1960.
 Many thanks Andy

Title: Re: Which fork oil when using two way damping
Post by: chaterlea25 on 09.07. 2021 20:59

Hi Andy,
I am using 10 weight,
To work the damper valves need to be under the oil level, so the quantity is not as in the manual
There is a good thread on the subject  here, https://www.a7a10.net/forum/index.php?topic=2895.45

John

Title: Re: Which fork oil when using two way damping
Post by: muskrat on 11.07. 2021 21:19

G'day Andy.
It's a personal preference thing. I don't have progressive springs. I use 20wt on the road but used 30wt on the track. I like it firm.
Cheers

Title: Re: Which fork oil when using two way damping
Post by: BSA500 on 12.07. 2021 19:59

Years ago I used used the standard oil and it was too stiff so the 10wt looks favourite I have got progressive springs, which to be quite honest I never noticed any difference *smiley4*.
I will probably go for 200ml per leg .

Title: Re: Which fork oil when using two way damping
Post by: Peter in Aus on 14.07. 2021 00:47

I use ATF cos that what I got and works good for me *smile*

Title: Re: Which fork oil when using two way damping
Post by: BagONails on 14.07. 2021 09:57

I'm not sure it matters too much as most of the oil will either leak out or be displaced by rain water by the sounds of some of these other fork seal threads I've been reading. *eek*

Title: Re: Which fork oil when using two way damping
Post by: BSA500 on 14.07. 2021 16:27

True I'm not expecting to find much in there when I change it

Title: Re: Which fork oil when using two way damping
Post by: Peter in Aus on 15.07. 2021 02:13

Drilling a small hole (1/8 or a little bigger) just above the seal in the seal holder so as the hole is at the lowest point when the seal holder is screwed down tight (in other words at the rear) will alleviate most (if not all) of the water getting in to the forks, it is a bit tricky just to where to drill the hole, it is probably best to work out where to drill the hole when the seal holder is off.
I had no problems with water getting in after doing this *smile*
Peter

Title: Re: Which fork oil when using two way damping
Post by: Rich B on 17.07. 2021 12:49

I have dampers on 2+bikes. The 65 A65 has 10W fork oil, stil a touch harsh for me. The 56 DB has 7.5W shock oil and is nice, very nice.