A customer brought in a Ksyrium SL for servicing.
The customer is the second owner of this bike,
and has been riding it with virtually no maintenance for about 20,000 km since acquiring it.
The customer also wanted a hub overhaul, so I did that.
The image shows the rear hub being cleaned.
I added grease to both sides of the front hub and the right side of the rear hub bearing,
but replacement wasn't necessary.
The front wheel had a center offset of about the thickness of a one-yen coin,
and just correcting that required a fair amount of retensioning, so
the spoke tension definitely became much tighter.
The rear wheel had the rim slightly offset toward the freewheel side,
but since the tension was low on both sides,
I retensioned the freewheel side first, intentionally increasing the center offset,
then corrected the center with retensioning on the non-freewheel side.
Throughout this process, I had the customer confirm how the spoke deflection decreased.
The customer is the second owner of this bike,
and has been riding it with virtually no maintenance for about 20,000 km since acquiring it.
The customer also wanted a hub overhaul, so I did that.
The image shows the rear hub being cleaned.
I added grease to both sides of the front hub and the right side of the rear hub bearing,
but replacement wasn't necessary.
The front wheel had a center offset of about the thickness of a one-yen coin,
and just correcting that required a fair amount of retensioning, so
the spoke tension definitely became much tighter.
The rear wheel had the rim slightly offset toward the freewheel side,
but since the tension was low on both sides,
I retensioned the freewheel side first, intentionally increasing the center offset,
then corrected the center with retensioning on the non-freewheel side.
Throughout this process, I had the customer confirm how the spoke deflection decreased.