New Wheel size

1. FunkyDave Infrequent Poster Joined: Jun 2010 Preston, Lancashire Posts: 235 2001 Renault Megane 1.9DTi

   #1 11th August 2010, 12:13

   Gonna be fitting 15's soon, but the cars currently on 13's. anyone got an idea of how much this throw the speedo reading out or will i need to get it re-calibrated?
2. RachBabyX Regular Poster Joined: Apr 2010 Cheshire Posts: 441 furio ;)

   #2 11th August 2010, 12:20

   i went from 13's to 16's and its made virtually no difference.
3. marcusd Saxperience Post Whore Joined: Jan 2009 warrington Posts: 7551 posi blue mk2 2003 vtr

   #3 11th August 2010, 13:57

   your speedo will be out anyway. havent been in a saxo where its accurate yet. was running standards and 15's speedo still out by around 4-5mph
4. RachBabyX Regular Poster Joined: Apr 2010 Cheshire Posts: 441 furio ;)

   #4 11th August 2010, 14:41

   yeah tbh mine is out 5ish already before i changed my wheels... just change them and find a speed trap to check it or use a tomtom with the speedo on that
5. Azzybonjela Infrequent Poster Joined: Mar 2010 Posts: 206

   #5 11th August 2010, 16:11

   the speedo goes through the gear box, the wheel size makes no difference
6. AdamDougal Established Member Joined: Jun 2010 Middlesbrough Posts: 1673 2002 Quicksilver

   #6 11th August 2010, 17:12

   and how do you think the gearbox picks up your speed?
7. baker123 Infrequent Poster Joined: Oct 2009 Stockport Posts: 170 Citroen saxo 1.4 furio silver

   #7 11th August 2010, 17:40

   Quote:

   Originally Posted by Azzybonjela the speedo goes through the gear box, the wheel size makes no difference

   so if i sat on idle with clutch in and moved the gear stick around the speedo will move..........epic fail
8. Quick Saxperience Post Whore Joined: Mar 2003 United Kingdom (England) Posts: 7064

   #8 11th August 2010, 19:48

   Fit 195 45 15 tyres.
9. FunkyDave Infrequent Poster Joined: Jun 2010 Preston, Lancashire Posts: 235 2001 Renault Megane 1.9DTi

   #9 12th August 2010, 12:35

   Cheers for help
   
   

   Quote:

   Originally Posted by baker123 so if i sat on idle with clutch in and moved the gear stick around the speedo will move..........epic fail

   - Couldnt agree with the EF more
10. reverend_jt L-plater Joined: Jul 2010 Lincoln Posts: 56 Citroen Saxo VTR '98

    #10 13th August 2010, 01:19

    the speedo will be reading a higher speed than you are actually travelling anyway. so by fitting larger wheels your speedo will probably end up more accurate than on standards. But to avoid extra strain on other parts you should aim to keep the overall size of the wheels and tyres combined, as close to standard as you can (fit a lower profile tyre) and also consider trying to keep overall weight similar as well.