After riding through flooded roads or light rain,
haven't you ever wished desperately for your rear tire to dry out faster?
Yes→2 people
No→1 person
(Survey conducted at our shop)
Nearly 70% of respondents answered "yes." Statistics are scary, aren't they?

Ortlieb makes a saddle bag called the Mud Racer.
The company does have models with waterproofing so thorough that submersion is OK, but

this one just has a rubber cover pulled over the top to seal the zipper area—
it's not quite at the submersion-OK level.
However, when it comes to water falling from above like showers or rain, water intrusion is essentially zero.
Add a "rear tire dryer" to that, and you get the Mud Racer Fan.

The fan is mounted on the bottom of the bag.

Turn the switch on the side of the bag to ON and...

↓

The fan spins vigorously. This speeds up the drying of your rear tire.
Yeah, great! I was really hoping the tire would dry faster! (deadpan)

This fan (depending on the fan type) has
enough capability to block water from a faucet, so

you can use it as an active mud guard (←my own term).
A regular mud guard would be more of a passive mud guard, I suppose.
As I mentioned, the fan type varies, and we offer various fan options.
Besides the standard three-blade model in yellow that reminds you of a Doraemon copter,


There's a guarded type for those concerned that
sticking your finger into the spinning fan can hurt quite a bit.


A six-blade type for those who want to enjoy the sound.


For those who want an outright massive fan, there's a two-blade large type
(we've confirmed it doesn't interfere with pedaling).
Whether it violates UCI regulations is something we won't even bother looking into.
Also, even when the road surface is dry, there are times when
the switch gets turned on during climbing or sprinting, which has led to
people suspecting that "the 'rear tire dryer' name is just a cover—maybe this is what it was really made for?"
It's just a coincidence. Just a coincidence.
haven't you ever wished desperately for your rear tire to dry out faster?
Yes→2 people
No→1 person
(Survey conducted at our shop)
Nearly 70% of respondents answered "yes." Statistics are scary, aren't they?

Ortlieb makes a saddle bag called the Mud Racer.
The company does have models with waterproofing so thorough that submersion is OK, but

this one just has a rubber cover pulled over the top to seal the zipper area—
it's not quite at the submersion-OK level.
However, when it comes to water falling from above like showers or rain, water intrusion is essentially zero.
Add a "rear tire dryer" to that, and you get the Mud Racer Fan.

The fan is mounted on the bottom of the bag.

Turn the switch on the side of the bag to ON and...

↓

The fan spins vigorously. This speeds up the drying of your rear tire.
Yeah, great! I was really hoping the tire would dry faster! (deadpan)

This fan (depending on the fan type) has
enough capability to block water from a faucet, so

you can use it as an active mud guard (←my own term).
A regular mud guard would be more of a passive mud guard, I suppose.
As I mentioned, the fan type varies, and we offer various fan options.
Besides the standard three-blade model in yellow that reminds you of a Doraemon copter,


There's a guarded type for those concerned that
sticking your finger into the spinning fan can hurt quite a bit.


A six-blade type for those who want to enjoy the sound.


For those who want an outright massive fan, there's a two-blade large type
(we've confirmed it doesn't interfere with pedaling).
Whether it violates UCI regulations is something we won't even bother looking into.
Also, even when the road surface is dry, there are times when
the switch gets turned on during climbing or sprinting, which has led to
people suspecting that "the 'rear tire dryer' name is just a cover—maybe this is what it was really made for?"
It's just a coincidence. Just a coincidence.