We’ll make this a great experience
It’s our mission to provide you with world-class hospitality every time you visit us online or in-store. We’ll always take care of you. It’s the Trek way.
Trek-compatible seat mast cap.
"Lower weight and increase stiffness without the inherent drawbacks of fully integrated seatposts"
Read more"As well as saving weight, it can flex more than in a traditional system"
Read more"Trek took the extra step of making long and short seat mast tops available for personalized sizing"
Read moreGet all your favorite apparel from over 80 of the world's best cycling brands delivered right to your doorstep or local Trek retailer when you shop our curated online collection. If you're not 100% satisfied, you can return your purchase within 30 days for a full refund.
Shop all gear