We'll take care of you. Period.

It's our mission to provide you with world-class hospitality every time you visit us online or in-store. We're always here to help you. It's the Trek way.

30 Day Unconditional Guarantee

Ride it and love it, or we'll take it back. If for any reason you're not 100% happy with your trekbikes.com purchase, you can send it back within 30 days for a refund or exchange - no questions asked.

We're where you are!

With 50 Trek retailers across Ireland, you'll never be too far from a store.

Find your local Trek retailer here.

Trek Round Alloy Seatmast Cap & 7mm Ears

Model W541054

When it's time to refresh your trusty bike, Trek Genuine Replacement Parts have you covered.

Product details

Affordable alloy seat mast cap
Direct fit on all Trek road bikes with round seat masts
The 2-bolt design offers independent set-back and tilt adjustments
Includes 7 mm round saddle clamp ears
Includes 7x7 mm round rail clamp compatibility

Size	128mm x 10mm	172mm x 10mm
Length	128mm	172mm
Offset	10 mm	10 mm
Rail compatibility	7 mm round	7 mm round
Material	Aluminium	Aluminium

We reserve the right to make changes to the product information contained on this site at any time without notice, including with respect to equipment, specifications, models, colours, materials and pricing. Due to supply chain issues, compatible parts may be substituted at any time without notice. The prices shown are the manufacturer's suggested retail prices.

Weights are based off pre-production products at time of publication. Weights may vary in final production.