I noticed a bit of feathering on one wheel of my tandem set and read on the forum about the cost to align. I found a single youtube video of a similar setup so decided to give it a go.
The idea is to lay a straight edge across the sidewall of the tyre (avoiding any bumps and lettering) and measure each end to the chassis. It took several tries to get a reliable reading as the straight edge moves, the ruler slips and needs to be square. I found the tyre about 5mm out so climbed underneath, loosened the inner bolt and adjusted the cam.
When I was happy with the measurement (+- 1mm each side) I used a laser alignment tool to see how accurate the straight edge method is...turns out it is pretty good!
I didn't use the laser first because it doesn't tell me if the set is pointing straight ahead...only that the the 2 wheels are pointing in the same direction.
I'm on the road with 2500kms to Perth so will report back on my endeavours.
BTW: my j tech only has toe adjustment which is surprising as my cheap Chinese camper had both toe and camber. I guess it was another small cost saving on their part.
The idea is to lay a straight edge across the sidewall of the tyre (avoiding any bumps and lettering) and measure each end to the chassis. It took several tries to get a reliable reading as the straight edge moves, the ruler slips and needs to be square. I found the tyre about 5mm out so climbed underneath, loosened the inner bolt and adjusted the cam.
When I was happy with the measurement (+- 1mm each side) I used a laser alignment tool to see how accurate the straight edge method is...turns out it is pretty good!
I didn't use the laser first because it doesn't tell me if the set is pointing straight ahead...only that the the 2 wheels are pointing in the same direction.
I'm on the road with 2500kms to Perth so will report back on my endeavours.
BTW: my j tech only has toe adjustment which is surprising as my cheap Chinese camper had both toe and camber. I guess it was another small cost saving on their part.