In 1926 Just three models were in production, the 5/15, SS80 and the SS100.
Technically the 5/15 was identical to the previous year’s model with a simple side valve 680 engine and an open frame. Records are missing from this model perhaps 30 to 40 produced through the year.
SS80 was similarly very much the same as the 1925 model. The only
SS80 – 100 which was perhaps an
attempt to give the customers something close to the SS100 at a slightly
The SS100 remained the same as 1925 apart from the new box
headstock that was introduced midway through the year. This was a
racing improvement and effectively brought plates around the steering
head resulting in a much stiffer upper frame.
For an extra £6 10s a Bonniksen speedometer could be supplied. The Bonniksen not only measured the speed it could also showed elapsed time.
Karslake stand mounted underneath the footrest and acted as a side
stand. This made for much easier parking
when the only alternative at the time was time was the very heavy
rear stand. To park a bike with the rear stand meant dismounting,
moving to the rear of the bike and pulling the whole of the rear
end up onto the stand.
the motorcycle show in late 1926 George Brough announced the new
OHV680. He described this as a
This bike was a stripped down version of the SS100 with a guaranteed top speed of 110MPH. This sort of speed from a production bike was not really matched until Vincent beat it in the 1950s.