Overview Reviews Product Description Campagnolo 25 tooth 9 speed cassette Ultra-Drive cog 25-A * fits 10 freehub NOS Product Videos Custom Field Product Reviews (No reviews yet) Write a Review Write a Review × Campagnolo 25 tooth 9 speed cassette Ultra-Drive cog 25-A * fits 10 freehub NOS Rating * Select Rating 1 star (worst) 2 stars 3 stars (average) 4 stars 5 stars (best) Name *Email *Review Subject *Comments