Can you use regular track shoes with javelin spikes?

No, I do not recommend using regular track shoes to throw the javelin. Javelin spikes have spikes in the heel as well as the front, so you can plant your block leg without slipping.

Generally speaking javelin spike shoes are a heavier shoe. This allows for the much longer spikes. However, some athletes do wear there "regular" spike shoes and purchase a "jav heel" to add the extra much needed spikes in the heels.