Trek Colour-Matched Matte Carbon Seat Mast Cap & 7 mm Round Ears Size:175x20mm 4 inch wide tyre utilises

4 inch wide tyre utilises a Magi-X DH compound

Now made with the new four way stretch

Performance Line and Performance Line CX models

for greater theft protection

Go Bigger - CushCore improves suspension performance by 16% and reduces impact force from big hits by 50%

Trek Colour-Matched Matte Carbon Seat Mast Cap & 7 mm Round Ears Size:175x20mm 4 inch wide tyre utilisesTrek Colour Matched Matte Carbon Seat Mast Cap & 7 mm Round Ears Trek compatible seat mast cap Offered in a variety of lengths and offsets, the mast cap includes hardware compatible with round saddle rails only. 7x10mm carbon rail compatible hardware sold separately. Features: Ultra light carbon construction Direct fit on all Trek road bikes with round seat masts Colour matched for direct compatibility One bolt head design offers easy fore aft and