diff --git a/compact/central_tracker.xml b/compact/central_tracker.xml
index 3b50383df935e8985977dffb438b70356f5c8ce7..56d161807005d992446ece09408a1eec8a1271d0 100644
--- a/compact/central_tracker.xml
+++ b/compact/central_tracker.xml
@@ -32,7 +32,7 @@
     <constant name="TrackerBarrelInner_length1"     value="54.0*cm"/>
     <constant name="TrackerBarrelInner_length2"     value="60.0*cm"/>
 
-    <constant name="TrackerBarrelOuter_rmin1"       value="60.0*cm"/>
+    <constant name="TrackerBarrelOuter_rmin1"       value="39.3*cm"/>
     <constant name="TrackerBarrelOuter_rmin2"       value="TrackerBarrelOuter_rmin1 + TrackerBarrelSpaceFrame_width"/>
     <constant name="TrackerBarrelOuter_length1"     value="105.0*cm"/>
     <constant name="TrackerBarrelOuter_length2"     value="114.0*cm"/>
@@ -333,7 +333,6 @@
       Outer Tracker Subassembly (group 2)
       -----------------------------------
     </comment>
-    <!--
     <detector
       id="TrackerBarrel_Outer_ID"
       name="TrackerBarrel_Outer"
@@ -398,7 +397,7 @@
         <rphi_layout phi_tilt="10.0*degree" nphi="TrackerBarrelOuter_NModules" phi0="0.0" rc="TrackerBarrelOuter_rmin2" dr="0.0 * mm"/>
         <z_layout dr="0.0 * mm" z0="0.0 * mm" nz="1"/>
       </layer>
-    </detector>-->
+    </detector>
 <!--
     <detector
       id="TrackerEndcapP_Outer_ID"