Rim width. Which is best....
01-03-2017, 09:52 PM
Post: #1
Rim width. Which is best....
I have two sets of 14" rims: one set is 6" and he other 5.5" wide. Both are equipped with 185/60R14 wintertires which I will use in regularity rally.
Surface is one day 95% tarmac (probably wet and slippery), second day is almost 100% gravel.

So, to all the experts out there, which is the best rim width to use and why?

I guess more narrow is better on the gravel since it might give more sidewall deflection? And I guess it's safer to avoid tire coming loose from the rim.
But, is the wider much better on asphalt?
Can I compensate the smaller width with increased tire pressure?
Or, since I'm not using competion tires, difference between 5.5 and 6" is neglectable?
Anyone has some experience with it?
Find all posts by this user
01-03-2017, 11:11 PM
Post: #2
Rim width. Which is best....
As far as I understand regularity rallies aren't about top speed so in my opinion it wont make a difference, especially as you have same size tires on it. If there are a lot of twisty parts I'd personally go for the 6"

Sent from my SM-T800 using Tapatalk

AE86 ex-daily
Visit this user's website Find all posts by this user
01-04-2017, 01:54 AM
Post: #3
Rim width. Which is best....
What i can tell you is that my car dropped 2.56 cm when putting on 185/60/13 tyres in my case that will be bad news.
I will have no other choice than putting on 215/60/13 or 195/50/15.
Also it seemed 185/60/13 tyres with 6j, the 5.5 might have been better to from deflection point not 100% sure.
Also advan rally comes in both 5.5j and 6j havent figured out why, one tarmac one gravel?
Find all posts by this user
01-05-2017, 10:22 PM
Post: #4
Rim width. Which is best....
For sure it's not about topspeed just I want to put the best of both. But, some stages you can not reach the given average so it's almost rally😀
My idea for now: wider rim stretch the tire and make sidewall stiffer so should get better steer response etc. Smaller rim-width result in more deflection. I might try both and compare them during the rally

Verstuurd vanaf mijn HUAWEI VNS-L31 met Tapatalk
Find all posts by this user
01-06-2017, 11:11 AM
Post: #5
Rim width. Which is best....
What tyres are you permitted to use?
Bearing in mind you will be on a gravel stage for Stage 2.

When my dad does a Navigational rally (mixed surface), he usually runs either Gravel Tyres all round in a soft compound or just on the front, to avoid punctures and maximise drive (FWD).
Find all posts by this user
01-07-2017, 03:09 PM
Post: #6
Rim width. Which is best....
Only road legal wintertires are permitted, no matter the weatherconditions. I was thinking of 185/65 but prefer /60 for the asphalt part. Last year they did well. I used 6J and now I will start with 5.5J see if it's different...honestly I doubt it now since old bushing will have the major impact on slower steer response Smile I use continental Wintercontact TS860 they are very good on all conditions (dry, wet and snow), for sure it's the best choice in case of dry. I tried Kumho's before they were OK in snow but FacepalmFacepalmFacepalmHuhHuh on the dry.
Find all posts by this user

Possibly Related Threads...
Thread Author Replies Views Last Post
  Best quality Diffs gh0st 1 663 07-03-2022 07:49 PM
Last Post: banpei
  20v BT - which oil pump? Mylesmck 4 1,202 06-21-2022 04:51 PM
Last Post: pack
  Best Induction Kit / Set up chrisae86 20 9,493 06-10-2020 10:59 AM
Last Post: Lykowsky
  wider rear axle,track width,suspension questions ditn 6 6,711 10-18-2016 11:50 AM
Last Post: fantapants
  which connector is this ditn 7 6,355 07-27-2015 11:24 AM
Last Post: pack

Forum Jump:

User(s) browsing this thread: 1 Guest(s)

Contact Us | AEU86 | Return to Top | Return to Content | Lite (Archive) Mode | RSS Syndication