I ordered the seat concepts comfort low seat. Took forever, I think it was 12 weeks or so. It helped a little height wise but I find it less comfortable than the stock seat. It's pretty stiff. I ordered the ktm rally seat based off of comments that the reach to the ground would be the same as the stock seat.
The KTM 790 ADVENTURE R RALLY has a seat height of 910 mm and uses a one-piece design with a high, straight racing seat to improve racing ergonomics. All seats are compatible with each bike and multiple KTM PowerParts options include Ergo seats in standard (with three stages of heating control), +20 mm and -10 mm heights. KTM 790 Adventure R weighs 189 kg / 416.7 lbs. KTM 790 Adventure R has 3 photos. Technical specifications + Add to 'Compare list' Seat Height: 880 mm / 34.6 in A minimal mudguard mounts the license plate and winkers with the taillight tucked away beneath the seat, KTM 790 Adventure & Adventure R Chassis Seat Height: 33.5 inches (850 mm) 34.6 Height: 1.5" (38mm) Taller than stock. Details: The KTM 790/890 R Tall comfort seat has been built up at the front to counteract the natural forward slope of the OEM seat along with a slimmer profile allowing for a more relaxed feel. The rear of the seat has also been widened to provide better weight distribution alleviating un-wanted pressure The web page lists the seat height, part number, and price of various KTM seats for the 790 Adventure, including the R, S, Rally, and Tall Rally models. It also compares the seat height of the R, S, and Rally models and provides links to third party offers and install reports. OVo5.