| |
| Every wondered during chain adjustment whether you've got both sides equal? Well Trident came up with a cunning plan... |
| As the markings on the
rear wheel adjusters are pants, you can manufacture a simple set of parts
out of the following items to check the rear wheel alignment. This method
aligns the wheel to the same axis as the swinging arm so you can also use
this method to check if the swinging arm is twisted |
| The idea is to make a jig which will centre the two lengths of studding in the rear wheel spindle and the swinging arm spindle. To do this you need to manufacture 4 off “Conical Nuts”. |
| Parts needed:
3 off M10 Full Nuts
|
| Tools required:
1 Drill |
| You need to
make 2 off M10 conical nuts and 2 off M8 conical nuts, below is the procedure
for making an M10 nut: |
| 1. Cut 100mm length of the M10 studding |
| 2. Place two M10 nuts on the 100mm length of studding such that the second nut is flush with the end of the studding |
| 3. Lock the two nuts together using the two spanners |
| 4. Place the studding into the drill |
| 5. Mount the drill in a vice of workbench as per the picture |
 |
| 6. Start the drill in high speed |
| 7. Using an angle grinder whilst the drill is rotating grind away at approx 45 degree angle the front edge of the nut. As the work-piece is spinning so fast, you will get an even cone on the end of the nut |
 |
| 8. When you get to the stage as shown in the picture, stop grinding. Don’t grind too much away as you will need at least some of the flats to get the conical nut off the studding |
| 9. Let the nut cool down, it will be hot after grinding and use the glass paper to further smooth the surface of the nut that you have just ground away |
| 10. Extract the conical nut from the end of the studding using your two spanners. |
| 11. Repeat to make the scond M10 conical nut. |
| 12/ Repeat twice more but using the M8 studding and nuts |
| Now you can check your alignment: |
| 13. Wind one of the M10 nuts onto the 900mm length of studding you have left such that the conical end of the nut is closest to the end of the studding, continue to wind the nut on some 400mm |
| 14. Insert the studding with the conical nut on through the swinging arm pivot from the right hand side of the bike, such that the small end of the cone fits up inside the hole in the swinging arm pivot tube. Adjust the position of this nut so that the other end of the studding pokes out of the left hand side of the swinging arm pivot tube. If you have frame plugs in, you will have to remove them to do this |
| 15. Wind on the second nut from the left hand side of the bike with the small end of the cone facing the bike as shown below. Hand tighten the nuts so that the studding is not loose in the pivot tube |
 |
| 16. Repeat the process but using the M8 gear through the rear wheel spindle. You should end up with something looking like the picture below |
 |
| 17. Looking from behind the bike, check that the two lengths of studding are parallel, if they are not your swinging arm is twisted |
 |
| 18. Measure the distance between the pieces of studding from above both as close to the bike as you can and at the ends. It doesn’t matter what the measurement is as long as they are the same. If they are different, the wheel needs adjusting |
 |
| 19. If the wheel needs adjustment, get your chain tension right first and then use the right hand side adjuster to true the wheel up. Depending how far out the alignment is, you may have to re-set the chain tension |
| Although it is not necessary it may assist in the measurement if you mark both lengths of studding at 100mm intervals along the length that sticks out of the right hand side of the bike. If you always measure the distance between the free end of the two pieces of studding and the marks closest to the bike you will always get a true reading as you ensure that the two measurements are always parallel |
| Please do not attempt this procedure if you are inexperienced in the workshop. IXXRA take no responsibility for accidents/injuries or damage resulting from attempting this |