The ThinkRider PP5 is one of the cheapest spider-based power meters I’ve ever tested. I paid just AU$136 (US$100). On paper it promises ±1% accuracy, ANT+ & Bluetooth, 300-hour battery life, and full left/right balance. That kind of spec at this price should shake up the market. But after deep testing against a trusted baseline, the numbers tell a different story. Is this the budget breakthrough riders have been waiting for, or proof that some corners simply can’t be cut?