It is less than 25 mi to get to Clayton, GA from Franklin, NC. Just follow US-23 S from Franklin. It is totally straight and full of traffic but it will get you there quickly. This post shows the long leisurely route of a little under 50 mi using US-64 E to Higlands then NC-28/GA-28 to Warwoman Rd. Warwoman Rd will take you directly into Clayton.
There are at least two waterfalls along US-64, Dry falls and Bridal Veil Falls, where you can park and take pictures. There is a drive under Bridal Falls, and you can park your bike under the falls and take a photo.
US-64 has beautiful scenery with lots of fun twisties on a good road surface, but there can be lots of traffic so be psychologically prepared for a potential slow ride. US-64 will take you straight into Highlands, NC where you will turn onto NC-28 S. Highlands has plenty of ritzy restaurants but we have always liked to continue onto the fun NC-28/GA-28 where we encountered little traffic. The turn onto Warwoman Rd is a sharp right. Look for a road sign indicating an upcoming side road which will be Warwoman Rd. Warwoman Rd will be twisty for about the first two miles then it will settle down into a mild fairly straight ride with views of farms and horse pastures. Clayton, GA has plenty of restaurants and gas stations for taking a break.
If you want to drive an additional 12 mi heading south on US-23, you will reach Tallulah Falls. It is a short hike to the Falls and you get to climb up and down a bunch of stairs and walk over a swinging bridge.
Map for riding to Highlands via US-64 then riding NC-28/GA-28 and Warwoman Rd to Clayton, GA
Route for Franklin to Highlands via US-64 then to Clayton via NC-28 and Warwoman Rd
Southwest on US-23 S/ US-441 S Go 3.5 mi from Sanderstown Rd
Exit for NC-28/US-64 E towards Highlands/ Franklin. Go 0.3 mi.
Left onto NC-28 S/US-64 E/ Highlands Rd. Go 14.4 mi to Bridal Falls on left.
Continue in same direction (south) on US-64 E. Go 2.6 mi into Highlands.
Right onto S 3rd St/ NC-28 S. Go 0.2 mi.
Right onto NC-28 S/ S 4th S. Go 5.8 mi entering GA.
Straight onto GA-28 S. Go 5.7 mi (look for sign showing upcoming side road before your next turn).
Sharp Right onto Warwoman Rd. Go 14.0 mi into Clayton , GA.