They had road works on the Cambo side , pretty rough , just bulldozed big gravel, maybe 20 kms before Pailin coming from Battambang, basically dirt from Pailin to the border. We were on Yamaha Nouvas, did Kampong Cham (The Mekong Hotel is great at $5) to Pattaya one day, a bit long but OK.
We were on Thai reg bikes exited from Nakhon Phanon (to Lao) no problems with the paper work, a bit funny actually, they had a Katoy working on the Thai customs stamping the forms etc. first time I'd seen that in an official building.The stamp says "Pong Nam" as the Thai side.Didn't ask for Ins as Thai bikes.Looks like they can do all the paper work as a normal border.
We did cross the bridge at Strung Treng and hope to claim that as the first Farangs on bikes to do it, it was 8PM as we were late thru at the Lao/Cam border, imagine our surprise at seeing the bridge lights in the distance before Strung Treng, but arriving at the bridge it was " the lights are on but nobody home" a big 1m high barrier across the bridge, a $5 bribe to the drunk guards and the bikes were across the block on planks,(the ferry can be $5 each!) a couple of photos and off to the other side. Shit , locked gates on the Strung Treng side, police having a party on the road, a key found for the lock and we were waved thru gratis. Hiko can vouch for me, I'm waiting for his story.
590 kms is nothing did 697 kms on the Nouvas from Lao Boa to Strung Treng in a day, mind you got a sore arse. Kampong Cham to Pattaya was the longest 715 Kms.The Pailin road was a pain.