diff --git a/lib/bcoin/tx.js b/lib/bcoin/tx.js
index 606dbd37..f270e3c1 100644
--- a/lib/bcoin/tx.js
+++ b/lib/bcoin/tx.js
@@ -93,10 +93,6 @@ TX.prototype.fromOptions = function fromOptions(options) {
   var i;
 
   assert(options, 'TX data is required.');
-  assert(utils.isNumber(options.flag));
-  assert(Array.isArray(options.inputs));
-  assert(Array.isArray(options.outputs));
-  assert(utils.isNumber(options.locktime));
 
   if (options.version != null) {
     assert(utils.isNumber(options.version));