FIDLOCK is running their Black Friday Bundles - choose two or more and save 30% off entire order:
As an example, you could choose the TWIST 800 Single Bottle [fidlock-bike.us]
and TWIST bike base [fidlock-bike.us]
separately to count as 2 items and qualify for 30% off for a total of $33.58 shipped.
Shipping is free this weekend. This setup is effective on fitting a larger bottle in a low clearance frame like some full suspension MTB.
Here are a few reviews: