Our knee made contact with the pack on a few occasions
when we were hammering out of the saddle or using excessive body English, but the contact was minimal. We brushed
up against the pack but didn’t get hung up on it.
Dropper-post riders have experienced clearance issues
between traditional seat packs and their rear wheels when
the saddle is slammed, and the packs sometimes interfere
with post movement. The Tri-Phone Pro Pack solves these
problems by moving the pack to the top tube. The top tube is
a far better location for added weight than off the back of a
saddle. A very neat pack for sure. ;
The saddle-pack solution for dropper seatposts
Delivers above-average value and performance
Recommended for intended application
Shows potential but has drawbacks
Save your hard-earned bucks
INERTIA DESIGNS TRI-PHONE PRO PACK
The folks at Inertia Designs came up with a small pack
that allows riders to view their smartphones while riding.
What they may not have realized is that their $31 Tri-Phone
Pro Pack solves a problem for riders who use dropper seatposts.
Tech features: The Tri-Phone Pro Pack is made in the
USA from Cordura/DP fabric and uses a water-resistant
YKK Uretek zipper. The pack measures 5. 75 by 3. 5 inches,
and the top of the pack has a marine-grade vinyl window
for viewing your smartphone screen. The pack’s side panels
are padded, and three hook-and-loop straps secure the case
on the top tube just behind the head tube. They also offer a
slightly longer $35 version for Android device users.
Field test results: There may be a bike frame design that
the Tri-Phone Pro Pack won’t fit, but it fit all the current
test bikes we have in our fleet. Once secured by the three
straps, the pack didn’t budge. The pack is big enough for two
tubes, a multi-tool, a CO2 inflator, a few CO2 bottles and
then some. Your phone slips into a zippered top sleeve and
is visible through the vinyl window. Touchscreens can be
operated through the vinyl. Nice.
Glove box: Our pack stayed in place and mounted easily to a
number of frame designs.
Window dressing: The clear panel gives you a view of your
smartphone’s screen and allows you to activate the touch-screen.