How to true Shimano ‘opposite lock’ wheels?

[doctor-bond]

Any special tricks to trueing these bassackward puppies?

 

[2manyoranges]

ah the 'Preztel Meisters'

I had an interesting experience on these. Pothole....argh...can't avoid. BANG! Christ! rear wheels locks and I skate an S down the road, leaving a rubber trail behind me. One spoke gone and wheel locked against the side of the frame. Walk of Shame home. At least to where my partner picks me up in the car.....

Madison no longer stocked spokes for these at that time, maybe five years ago

They are light, sound wheels but need care in tensioning. Do NOT over tension.

Each spoke pulls the wheel OUT TOWARDS IT - to true for 'lateral wobble'
Each pair of spokes has two opposites in each case - true opposite two spokes and adjacent two sets of spokes for 'circularity'

But start by putting release fluid on nipples and leaving for 24 hrs
Then investigate WHY it's out of true
Check all tensions and worry about those that are very tight
Keeping those in mind try slackening the spokes which are pulling those into tension

See if that gets you where you want to be

Then check all spokes for tension and tension all slightly if they need it

Bear in mind the late and great Bill Rayment's Rule of Tension: 'there are three tensions for spokes. Too loose. Too tight. And just right'
Thanks Bill.

 

[doctor-bond]

Thanks - they do look like a solution to a problem that never existed: I haven’t had a tinker yet, but increasing tension would seem to want to twist the rim and effect circularity before helping any lateral movement. Which would suggest that left and right spokes need to be almost exactly the same tension - okay on the front but the rear isn’t dishless.

Time to FAFO.

 

[doctor-bond]

Aw, bloody hell - they need a 4.3mm dedicated spoke wrench. Can feel my “being arsed” ebbing away.

Anyone want some Shimano wheels? rear a little out of true, front hardly at all. Barely used Conti tyres included.

 

[bikeworkshop]

You can make a spoke wrench for these by grinding a slot in a piece of steel, or if the nipples aren't too seized, use a small adjustable.

Often you need to reduce tension on one side while increasing on the other.