When a spoke is adjusted by turning the nipple from outside the rim. if tightening the spoke, it will inevitably protrude further into the rim. This in turn is likely to damage the seal. Also, just by turning the nipple, if the seal is stuck to the inside of the nipple, again damage may occur.
What type of tool or method prevents that happening? Or, is it just luck?


Doug
2011 Plus 4 in Rich Maroon

1972 750 “ComDom” sprinter
1958 Triton 650
1992 Triumph Trophy 900