Greetings,
I too would recommend Desert Sport Racing, I dealt with them recently and was pleased.
More details in my post here:
http://www.horizonsunlimited.com/hub...667#post397414
They have a decent Pirelli selection. Tyres here (Peru) are very reasonably priced, slightly more costly than in Bolivia though.
Here are the prices in Soles quoted for Pirelli MT60 and MT90:
MT90 Scorpion 120/90/17 (64S): 215.35
MT90 Scorpion 90/90/21 (54V): 142.57
MT60 90/90/21 (54T): 137.05
MT60 120/90/17 they did not have.
Changing the tyre was an extra 20 Soles.
Another shop further North I found but didn't deal with was:
LIMA HONDA PARTS SRL
(Francisco Leonardo Cruz)
Prolongacion Iquitos 1469, Paso de la Republica 1448 - Lince, Lima
Tel: 2651708 Cel: 9941-66302 Cel: 9993-69486 email:limahondaparts1@yahoo.com
They said they stocked Pirelli MT60/MT90 tyres.