Show #466 - The Fastest KX450 I Have Ridden w/Jamie Ellis

Keefer and Pro Circuit team up to create a stage one engine build that gives the rider a noticeable amount of power on the track but still is smooth enough to keep an "easy to ride feel". What is involved into such a build? Is it comparable to an SR? Can you run pump fuel? All of those questions and more will be answered in this show. Keefer will also break down what Pro Circuit can do to your suspension and how you can get more comfort as well as hold up within your KX450 SHOWA suspension.

Keefer and family headed to Birmingham to race the SMX Next event and come on to tell you about the weekend. Get a inside look on what goes on at a SMX Next SX event as well as all of the inner workings that involves getting Aden Keefer out on the track. Sit back, grab a drink, have some laughs and enjoy 90 minutes of family moto banter.

Keefer and crew answer your burning questions that you've submitted! From new to old bikes as well as what parts are worth the buy, this show has a little bit of everything.

Keefer talks about the 2026 450 MX moto media shootout results then applies those results to what these bikes feel like on east coast conditions. This episode also dives into the on going debate on if any of the new 450 MX machines feel different from Southern California (when comparing them to riding on the east coast style tracks). Get the info on which new 450 feels best for which type of rider/conditions in this NON SHOOTOUT comparison.

I sit down with my son Aden and mechanic Eddie to go over the weekend of SMX Next racing from the famous Daytona International Speedway. We will go over how Aden's first SX was, what some of the surprises were, what grade we give Aden on his performance, bike set up and much more in this all SX episode.

Is the new Factory Edition with Pro Components worth the extra cost over the stock KTM 450 SX-F? Keefer breaks down the new orange machine and gives you some insight on what the main differences are on the new FE. AER or Cone Valve? 109Db limit? What about the engine character? Is the new sound limit hurt the great KTM engine delivery? All of this and more in this episode.

Keefer breaks down the Ducati Desmo 450 after spending more time on the Italian Stallion. Learn about mods that help the chassis as well as the engine character within this show. Get some details on how to create a more balanced Desmo as well as a more friendly experience on the track.

Jamie Ellis from Twisted Development comes on to chat with Keefer about his latest KX450 build. Learn about what was done to the engine to make it one of the fastest Kawasaki builds to date and what you can do to your KX450 without breaking he bank. Get helpful tips as well as some insight on the strengths and weaknesses of the KX450 powerplant from one of the best engine builders this industry has.

Keefer and Eddie Laret go over the YZ250 two stroke and give you some insight on mods, jetting, who this bike is for and why/when you should choose a two stroke in your life! Get all the BRAAAAAAP right here in this show!

In this episode Keefer will break down how it's going with the 2026 KTM 350 SX-F and what he's learned about this bike over the past couple months. Learn about what mods he has done to the mid sized orange machine and hear which mods didn't work out so well. Also, in this episode hear how SX prep is going with Aden Keefer and what he has learned about SX over riding/racing MX.