Isospeed and 230 grams are not the only differences between the Checkpoint SL and AL

The SL has BB90 bottom bracket while the AL has BB86.

Different cassettes - HG800 vs HG700.

Seatmast on the carbon version vs traditional seatpost on the aluminum version.

Somewhat better tires - Schwalbe G-One Allaround TL-Easy vs non-TL-Easy.

The seatmast on the carbon version is a deal breaker for me personally.


-Tim-