Title: F A Q
Description: Rim/offset/PCD/clearance?????
Description: Rim/offset/PCD/clearance?????
Brian_J - April 20, 2006 04:02 AM (GMT)
From enkei.co.jp:
NAME OF WHEEL PARTS
WHEEL SIZE
OFFSET
The offset indicates the distance from the center of the rim to the attaching disk part (unit:m/m). As seen in the attached drawing, the offset is indicated by "+" when the fitting surface extends beyond the central line of the rim and "-" when it is falls within. Caution is required to prevent the tire from coming into contact with the fender of the vehicle or the brake caliper if the offsets are very different.
P.C.D
The number of bolts used to install a wheel varies from 4 to 6 depending on the vehicle model (except for some vehicle type), thus the wheel to be installed should also possess the same number of hub bolt holes. P.C.D. stands for pitch circle diameter, and indicates the diameter of the circle in mm connecting the center of each hub bolt. Since the P.C.D. also varies according to the vehicle model, make sure a suitable one is selected.
CLEARANCE
Fender clearance indicates the marginal space between the tire and the fender or body of the vehicle. Inner clearance indicates the distance between the tire and wheel and the body part which is positioned closest to the tire and wheel. Dimensions for both right and left clearance should be measured on a level surface, and the smaller value is then considered as the inner clearance.
TIRE SIZE
1-Tire width (mm or inch)
2-Aspect ratio
3-Radial construction
4-Rim diameter
5-Load index
6-Speed symbol
7-Tire outer diameter (inch)
8-Ply rating
NAME OF WHEEL PARTS
WHEEL SIZE
OFFSET
The offset indicates the distance from the center of the rim to the attaching disk part (unit:m/m). As seen in the attached drawing, the offset is indicated by "+" when the fitting surface extends beyond the central line of the rim and "-" when it is falls within. Caution is required to prevent the tire from coming into contact with the fender of the vehicle or the brake caliper if the offsets are very different.
P.C.D
The number of bolts used to install a wheel varies from 4 to 6 depending on the vehicle model (except for some vehicle type), thus the wheel to be installed should also possess the same number of hub bolt holes. P.C.D. stands for pitch circle diameter, and indicates the diameter of the circle in mm connecting the center of each hub bolt. Since the P.C.D. also varies according to the vehicle model, make sure a suitable one is selected.
CLEARANCE
Fender clearance indicates the marginal space between the tire and the fender or body of the vehicle. Inner clearance indicates the distance between the tire and wheel and the body part which is positioned closest to the tire and wheel. Dimensions for both right and left clearance should be measured on a level surface, and the smaller value is then considered as the inner clearance.
TIRE SIZE
1-Tire width (mm or inch)
2-Aspect ratio
3-Radial construction
4-Rim diameter
5-Load index
6-Speed symbol
7-Tire outer diameter (inch)
8-Ply rating
nabsie - April 20, 2006 04:19 AM (GMT)
Thats really good, hopefully that might solve some peoples offset and rubbing questions etc.
Nice one Brian_J B)
Nice one Brian_J B)
FLEX - April 20, 2006 05:11 AM (GMT)
well done !
i have been meaning to find one for ages to answer all the questions in a simpler format. hopefully the tech drawings wont intimate others. pretty easy to understand.
i have been meaning to find one for ages to answer all the questions in a simpler format. hopefully the tech drawings wont intimate others. pretty easy to understand.
SSML - April 21, 2006 08:00 AM (GMT)
Brain J: thanks fo rpulling all the info together. I know most of the info already. but your post give a clear/logic way to understand the wheel/rim/tyre issues.
Well done mate
Well done mate
xnickx - April 24, 2006 01:52 AM (GMT)
Very good research man...will help heaps in the future !!! Top effort
(now i know what offset is haha)
thanks
Nick
(now i know what offset is haha)
thanks
Nick
Brian_J - April 24, 2006 01:59 AM (GMT)
heh, thanks for the kind words guys, but really it was just a copy and paste from the enkei website.
xnickx - April 24, 2006 02:03 AM (GMT)
| QUOTE (Brian_J @ Apr 24 2006, 01:59 PM) |
| it was just a copy and paste from the enkei website. |
OHHH....can i take my comments back then? :P haha jokes mate.
Nick