GoldenMotor.com Forum

General Category => General Discussions => Topic started by: caradec on September 20, 2009, 10:40:09 AM

Title: tire dimensions
Post by: caradec on September 20, 2009, 10:40:09 AM

Hello, I have received a 16" cast wheel motor, but since it has no indication on it, I don't know what are the dimensions of the needed tire. 16" of course, but which width ? I tried a 16 x 2.125 tire, too thin.
Here is the drawing : http://www.goldenmotor.com/hubmotors/MW16B%20Drawing.pdf (http://www.goldenmotor.com/hubmotors/MW16B%20Drawing.pdf)
Does anybody know ? Thank you.

Title: Re: tire dimensions
Post by: TRK on September 20, 2009, 02:33:27 PM

According to the drawing the diameter of the wheel is 321 mm, closest to that seems to be 16 x 1 3/4 with 317 mm.  See also: Measuring Bicycle Rim Sizes (http://www.sheldonbrown.com/rim-sizing.html).

Title: Re: tire dimensions
Post by: Bikemad on September 20, 2009, 05:44:12 PM

It's this measurement that is causing the problem:

(http://www.arhservices.co.uk/GoldenMotor/Rim.JPG)

It probably needs a wider motorcycle type tyre.

Alan
 

Title: Re: tire dimensions
Post by: TRK on September 20, 2009, 06:25:44 PM

I guess you're right, it already seemed weird to use such an unusual size, and caradec had already tried 16 x 2.125 which looked to be the widest bicycle tire in that size (ETRTO 57-305).

Title: Re: tire dimensions
Post by: caradec on September 21, 2009, 08:27:45 AM

For the moment, I have mounted the 2.125 - 16 tire with high inflation, and it finally seems to fit, despite it is a bit thin.
After a road test, I'll tell you. Thank you everybody.