Instruct: Classify a review into positive or negative sentiment.
Query: topeak defender

the product was poorly made, the front and back half of the fender broke off after 2 and 4 weeks of use respectively. the fender was being used for commuting to work (not even mountain biking or off road riding). as soon as it fell apart, i had to order a headland fender to replace the current one. caveat emptor!!