"If Roth asserts a claim against Bike Shop based on strict liability in tort, will Roth prevail?
Yes, if the brake failed because of a defect present when the bicycle left the factory of Cycle Company. 
Yes, because the brake failed while Roth was riding the bicycle. 
No, if Roth contributed to his own injury by speeding up. 
No, if Bike Shop carefully inspected the bicycle before selling it. 