Sur le net j'ai trouvé ça:
MEXICO
Neither of us were physically harmed during this assault but have both been rattled mentally. We urge all tourists and cyclists to avoid the road from San Cristobol to
Agua Azul falls to the ruins of
Palenque to the border of Bethel in
Guatemala. After our discussions with local police we have learned that attacks on tourists in these areas are now occuring several times per week. Some of the attacks have even involved large tour buses and shuttle vans. We have also received word from two other cyclists who have also been assaulted on this same road in the past 4 weeks. You can read a another account of the current danger of travel in this area on our friend´s site at: spinningsouthward.com
From:
thorntree.lonelyplanet.com/...arentid=0&from=1
There is a steady trickle of stories of banditry against cyclists coming from
Mexico. I would say the most common place to hear of such incidents is
Mexico. But a lot of cyclists go to
Mexico, so it is hard to assess whether it really is dangerous or whether these are isolated incidents. There is another such an incident in a current thread, which provides the useful information that the
San Cristóbal de las Casas area in
Chiapas, which earlier had a bad reputation for banditry, has got it again. Some research should expose the dodgier parts of
Mexico,
Chiapas is plainly one of them. Hopefully the police will get on top of the problem, but in
Mexico the police are often part of the problem
From:
thorntree.lonelyplanet.com/...arentid=0&from=2
After a rather uncomfortable night on the hard floor (on the ferry from the Baja Peninsula back to mainland
Mexico), the ferry arrived at 10am. It was raining in the rather dirty city of Mazatlàn, so I decided to ride on, out of town and head south along the coast. The buses and trucks were driving straight past me, hitting the potholes, splashing the dirty water and stones into my face...not really a pleasant ride! The first stretch down to Rosamorada was probably the most dangerous stretch of my entire journey, for over 250km I just hoped and prayed that a truck will not hit me! a terribly busy road but I had no alternative (to take a bus would have probably not been any safer either!)
From:
www.danigrab.com/101476/105675.html 
