That depends on what kind of ride your looking for. If your looking for a firm street ride you could go with a reflex type shock that comes in both monotube (i.e. KYB Monomax or the Monroe Reflex that now comes in either twin tube or monotube) or the Rancho RSX twin tube. If you are looking for a more comfortable ride you might try the Monroe Sense-a-trac or Rancho 5000.