Lawn mower upgrade

alan.borlandCYY2TS-T

I have a 15 year old mountfield sp535 lawnmower (4 wheeled rotary with self drive) and I have been very happy with the way it has performed, but I'm thinking about a replacement.  My lawn is generally flat, is divided in 2 parts (upper and lower) with a steep slope connecting the 2 parts.  This slope drops around 2 meters at an angle of approximately 40 degrees and is around 8 meters wide.  I cut across the slope using the mountfield without any issues.  I'm now thinking about getting a rotary mower with a rear roller and wondered how these cope with the slopes - I was thinking about the Hayter Harrier 41, until I read in the Hayter manual that a 20 degree slope is the maximum - is that particular to the Hayter as the mountfield equivalent doesn't have any slope restrictions?  

ColinA

The 20 degree angle is not so much for the mower but for the engine oil moving away from internal parts, a rear roller machine may have a tendancy to slide on wet grass on the slope

Devonian

Not a roller machine but I have a Hayter Osprey 46 self-drive and it is an excellent machine (also comes with a mulching plug). Copes with slopes no problem, but yes I think the roller might be the issue on a steep slope...

Hostafan1

When I used to do contract mowing, I always bought Honda. Never had any problems, lasted donkey's years even  with pretty rough treatment and started first time every time.