The Lakeside Hammers say they will wait before bringing in a replacement for Lee Richardson as a mark of respect.
Richardson died in a crash in Poland aged 33 earlier this month, and the rest of the Hammers team have been taking his rides since then.
Hammers co-promoter Jon Cook told BBC Essex: "Our way of showing our respect is not to bring in a rider quickly.
"We're going to have a self-imposed period of respect for a month, in terms of operating rider replacement."
He continued: "It needs to be the right rider, and there's very few that are going to meet that qualification for us."
The Hammers visit King's Lynn in the Elite League on Wednesday, with Davey Watt declared fit to ride.