Senior Member
Join Date: Feb 2012
Location: Rochester, NY
Posts: 18,095
Bikes: Stewart S&S coupled sport tourer, Stewart Sunday light, Stewart Commuting, Stewart Touring, Co Motion Tandem, Stewart 3-Spd, Stewart Track, Fuji Finest, Mongoose Tomac ATB, GT Bravado ATB, JCP Folder, Stewart 650B ATB
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 4210 Post(s)
Some steerers are of a gummy metal, 531 as example. A very sharp cutter and plenty of cutting fluid with best technique is advised to reduce the chance of the threads just pulling off the steerer as you cut them. For this reason I would pass on this job. (Having said that many French bikes did use other then 531 in steerers and stays...)
93mm is a VERY lot of thread cutting, independent of the material involved. As mentioned I would search for a more suitable fork before risking the current one. Andy
__________________
AndrewRStewart