diff --git a/LEGO1/motorcycle.cpp b/LEGO1/motorcycle.cpp
index 9b0e0e40..59188fc4 100644
--- a/LEGO1/motorcycle.cpp
+++ b/LEGO1/motorcycle.cpp
@@ -1,7 +1,12 @@
 #include "motorcycle.h"
 
-// OFFSET: LEGO1 0x100357b0 STUB
+DECOMP_SIZE_ASSERT(Motorcycle, 0x16c);
+
+// OFFSET: LEGO1 0x100357b0
 Motorcycle::Motorcycle()
 {
-  // TODO
+  this->m_unk13c = 40.0;
+  this->m_unk150 = 1.75;
+  this->m_unk148 = 1;
+  this->m_unk164 = 1.0;
 }
diff --git a/LEGO1/motorcycle.h b/LEGO1/motorcycle.h
index 5ba746a8..ee39fe24 100644
--- a/LEGO1/motorcycle.h
+++ b/LEGO1/motorcycle.h
@@ -1,6 +1,7 @@
 #ifndef MOTORCYCLE_H
 #define MOTORCYCLE_H
 
+#include "decomp.h"
 #include "islepathactor.h"
 
 // VTABLE 0x100d7090
@@ -22,7 +23,10 @@ class Motorcycle : public IslePathActor
   {
     return !strcmp(name, Motorcycle::ClassName()) || IslePathActor::IsA(name);
   }
-
+private:
+  undefined m_unk160[4];
+  MxFloat m_unk164;
+  undefined m_unk168[4];
 };
 
 #endif // MOTORCYCLE_H