Rolling Right Along: A Look at School Bus Tire Offerings
JohnDow Dynamic Introduces New Line of TPMS Retro Kit Sensors
New TPMS sensors can reduce tire-related hazardous conditions by providing tire pressure and temperature data for vehicles without standard TPMS.

The sensors are designed for vehicles without manufacturer-installed tire pressure monitoring systems (TPMS).
Image: JohnDow Industries
JohnDow Industries (JDI), a supplier and distributor of automotive aftermarket equipment and products, announced the addition of TPMS (Tire Pressure Monitoring System) Retro Kit Sensors to its Dynamic division’s line of products.
These sensors, designed for vehicles without manufacturer-installed TPMS, provides increased passenger safety and alleviates hazardous tire-related incidents. These sensors work with virtually any air-filled tire. Dynamic’s new Retro Kit Sensors are available in External (DY-BLE-E) and Internal (DY-BLE-I) sensor options. Also available is the TPMS Repeater (DY-BLE-R) to extend the overall signal distance up to 30 feet. Both sensor options work with the easy-to-use Dynamic BLE phone app to program and assign up to 36 sensors.
These sensors are ideal for:
Single-, dual- and tri-axle hauling trailers.
Campers, recreational vehicles (RVs), 4-wheelers, dirt bikes.
Bicycles, scooters, side-by-sides.
Heavy-Duty vehicles like dump trucks, semitrucks, or tractors.
Municipal vehicles including ambulances, fire trucks, and city/school buses.
The External Retro Kit Sensors replace a tire’s valve cap to measure tire pressure and temperature. Designed to swap out to other vehicles, these sensors are as easy to install as screwing on a valve cap. The Internal Retro Kit Sensors act as a traditional TPMS Sensor, installed inside of the tire.
These TPMS sensors come with four valve color options and are ideal for boat trailers or a long-term TPMS solution. The Dynamic BLE TPMS app provides options to set up multiple vehicle profiles with real-time data and alerts including fast leak, high/low-pressure, high temperature, and sensor low battery – all from a phone or tablet.
“We hear all the time about boat trailer tires or heavy-duty tires blowing out on the highway, causing – at a minimum – very hazardous conditions,” said Greg Iorfida, national sales manager of the JDI Dynamic Division. “These new TPMS Retro Kit sensors provide critical pressure and temperature information that could prevent a lot of these incidents.”
More Products

Vampire Tools' CAIMAN 7.5-Inch Multi-Purpose Screw Extractor Long-Nose Pliers with Crimper
Vampire Tools introduced the VAMPLIERS Caiman 7.5-inch multi-purpose pliers, combining screw extraction, cutting, crimping, and gripping functions into a single tool designed for fleet maintenance professionals.
Read More →
BendPak Launches New Tire Changers and Wheel Balancers
APEX by BendPak expands its tire service lineup with new swing-arm tire changers and wheel balancers designed for school bus and light-duty fleet maintenance operations.
Read More →
Cummins Introduces Meritor MFLEX4 Air Disc Brake Pad
Check out key features of the new air disc brake pad and catch free 2026 brake training sessions from Cummins and Meritor. Details here.
Read More →
Vampire Tools' New 10" Slip Joint Pliers
Remove screws with ease thanks to the wide-open jaws on Vampire Tools' newest plier made of steel.
Read More →
BendPak Introduces R980DP Tire Changer
BendPak's Ranger Division unveils the R980DP, its first swing-arm tire changer with two power assist arms, a bead roller, and exclusive features to maximize productivity in tire shops and professional garages.
Read More →
Femco Launches Color Coded Fluid Drain/Fill System
The new product is geared toward heavy-duty equipment and prevents fluid cross-contamination.
Read More →
Dynamic Introduces Insulated T-Handle Hex Key Sets
Dynamic Tools now offers six-piece T-handle hex key sets designed specifically for usage with high-voltage systems like those found on electric school buses.
Read More →
Intellitec Launches 250 Amp Smart Battery Disconnect
The new integrated battery guard provides protection against dead batteries, saving your electrical network by sensing battery status and disconnecting power when needed.
Read More →
Mohawk Lifts Updates Scissor Lifting Table
With an increased lift capacity, Mohawk's SLT-2500 can hold 2,500 lbs and can be used for EV battery service.
Read More →
Castrol, Safety-Kleen Team for MoreCircular
Castrol and Safety-Kleen join forces in the hopes of revolutionizing the U.S. lubricants industry with Castrol MoreCircular.
Read More →
