![P4B Seat clamp for your bike - 31.8 mm | with threaded eyelets for luggage rack attachment | Seat clamp in black | Mounting on the seat post. : Amazon.co.uk: Sports & Outdoors P4B Seat clamp for your bike - 31.8 mm | with threaded eyelets for luggage rack attachment | Seat clamp in black | Mounting on the seat post. : Amazon.co.uk: Sports & Outdoors](https://m.media-amazon.com/images/I/71PPF89kkTL._AC_UF894,1000_QL80_.jpg)
P4B Seat clamp for your bike - 31.8 mm | with threaded eyelets for luggage rack attachment | Seat clamp in black | Mounting on the seat post. : Amazon.co.uk: Sports & Outdoors
![Specialized STP MY14 MTB ALIEN HEAD CLAMP SET W/ BOLT FOR 7X9 CARBON SADDLE RAILS ON SW MTB & COMMAND POST - Beyond Bikes Specialized STP MY14 MTB ALIEN HEAD CLAMP SET W/ BOLT FOR 7X9 CARBON SADDLE RAILS ON SW MTB & COMMAND POST - Beyond Bikes](https://www.beyond-bikes.co.uk/content/products/specialized-stp-my14-mtb-alien-head-clamp-set-w-bolt-for-7x9-carbon-saddle-rails-on-sw-mtb-command-post_185914.jpg)
Specialized STP MY14 MTB ALIEN HEAD CLAMP SET W/ BOLT FOR 7X9 CARBON SADDLE RAILS ON SW MTB & COMMAND POST - Beyond Bikes
![Fizik oval carbon rail saddle won't fit my seatpost. I found a carbon Fizik saddle in my parts locker and the oval rails will not fit my seatpost. Are there different clamps Fizik oval carbon rail saddle won't fit my seatpost. I found a carbon Fizik saddle in my parts locker and the oval rails will not fit my seatpost. Are there different clamps](https://preview.redd.it/lb7wo05wyjh61.jpg?auto=webp&s=730da929bb7ecec4e43a787fe05c50a8e73f1f45)