I've been running the Orion Race ESC without fan or heat sink without any problems.. it's really light too.
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Kyosho Ultima RB-5 SP / Lazer ZX-5 FS / Ultima RT-5
Orion - DesirePower - Futaba - Savöx
Kyosho Sweden
AutoPartner RC
Mr 'O' Racing Foams
rc.pererik.nu
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