I'm not an expert but if you are doing a lot of that type of riding the portals will be my choice. They will gear you down, give you lift, keep all your geometry standard, and drive the wheel directly reducing axle load etc. You could avoid a clutch and sheave job with portals too saving you that money, you'll definitely need one of those with a lift and bigger wheels though.
Sent from the bottom of ANOTHER empty whiskey bottle.
Chookbanger Mark II,
Street legal Blue Viking, 2017 model, bought 3/4/2017.
Street legal Blue Viking, 2014 model bought 3/4/2014, sold 3/4/2017 with 2850 km and 189 Hrs.
Yamaha Saggy Bottom Club member.
Other Yamaha Bikes Currently Owned
2016 YZ85 (sold)
2017 Grizzly 350 4x2 Auto Quad
Honda 2012 CB250
Honda 1999 CT200
Honda 1985 CT200 Trike