Nope - the breather is a little tiny hole drilled down the center of the speedo cable retention bolt.
This is also where water gets into the gearbox when pressure washing (or just riding a lot in crap weather) and destroys the gearbox bearings...
The hole you're referring to above the gearbox output bearing is actually the breather for the monolever driveshaft INTO the gearbox, which then breathes through the speedo cable bolt. small holes and convoluted but seems adequate. BUT you must keep the speedo cable bolt hole clear, and don't point water at it. One of these days I'll make a proper vent...
The hole above the gearbox output bearing is sealed with silicone seal when used on a paralever bike, as they don't need venting in the driveshaft.
__________________
Grant Johnson
Seek, and ye shall find.
------------------------
Inspiring, Informing and Connecting travellers since 1997!
www.HorizonsUnlimited.com
|