I think just about everything that ought to said about routes and so forth has been said about Knockshanahullion. I was there on a beautiful sunny late December morning. Conditions were perfect because the heather was low and the soft ground had hardened in the frost. It was great to come from Farbreaga and sail along at a fine pace towards the summit. The air was clear and cold. The light intense. Hillwalking perfection - except for the noise of motor cycles and quads.
I did not know that at least one consultancy report distinguished between motor cycles and quads on the mountains. Writing in 2011, SLR Consulting (at the request of South Tipperary Tourism Company) considered the various activities enjoyed on the KMDs:

"The Knockmealdowns are an important centre for Observed Motorcycle Trials, a sport [that] is
similar to equestrian eventing. Although a minority sport in Ireland, it is very popular in Europe, and in England, Scotland, Spain and France it co-exists with other recreational users in areas of
outstandng natural beauty such as the Yorkshire Dales, Grampians, Sierra Nevada, and
Pyrenees. The Youghal Motorcycle club holds 1 International, 2 National, 4 Provincial and 1
Charity event every year. The international event attracts riders from England, Northern Ireland
and the Republic. The National event attracts riders from all over Ireland and the Provincial
event attracts riders mainly from Munster but also some from Leinster. The Charity event raised
€808 for the Hospice movement in 2010. The YMCC is a well managed and responsible organization and does not represent any unregulated, unaffiliated quad/4-wheel drive owners, and do not support their use of the mountain. The club has a strong ethos of conserving the natural environment of the Knockmealdowns, as they have been doing for the past forty years. The club aims to bring enjoyment of the mountain to the widest possible audience, within a safe, sustainable and regulated framework."

I feel a little bit sheepish to think that I was just as annoyed by the noise of motorbikes as I was by the noise of quads! At my age, one is inclined to be grumpy about everything.

Oh. Just for the record, I haven't one iota whose motorbikes were buzzing about on Knockshanahullion while I was there. Certainly not the bikes of the good folk of Youghal. Linkback: https://mountainviews.ie/summit/188/comment/17778/