:X1-class Melbourne tram

{{Use dmy dates|date=November 2019}}

{{Infobox tram

| name = X1-class

| image =

| caption =

| manufacturer = Melbourne & Metropolitan Tramways Board

| assembly =

| constructed = 1926–1928

| numberbuilt = 10

| numberservice =

| fleetnumbers = 459–468

| depots =

| designer =

| predecessor =

| successor =

| carlength = {{cvt|9.45|metres|ftin}}

| width = {{cvt|2.56|metres}}

| height = {{cvt|3.05|metres|ftin}}

| wheeldiameter = {{cvt|673|mm}}

| wheelbase = {{cvt|3.05|metres|ftin}}

| weight = {{cvt|10.4|tonnes|lb}}

| capacity = 32

| acceleration =

| deceleration =

| doors =

| lowfloor =

| traction motors =

| axleload =

| powersupply =

| collectionmethod = Trolley pole

| electricsystem =

| wheels driven =

| steep gradient =

| bogies = JG Brill Company 21E

| minimum curve =

| gauge = {{RailGauge|1435mm}}

}}

The X1-class was a class of ten trams built by the Melbourne & Metropolitan Tramways Board. Developed from the X-class, they differed in having four doors. They were initially allocated to Glenhuntly and Hawthorn depots. Six were transferred to the isolated Footscray network In June 1928 with the other four following in June 1929."60 Years of the M&MTB" Trolley Wire issue 186 February 1980 page 14{{cite book|last1=Cross|first1=Norman|last2=Budd|first2=Dale|last3=Wilson|first3=Randall|title=Destination City Melbourne's Electric Trams|date=1993|publisher=Transit Publishing Australia|location=Sydney|isbn=0-909459-18-5|pages=28, 115|edition=5}}

Originally they were overhauled at Footscray depot, but from 1949 they were transferred by road to Preston Workshops. Between 1954 and 1957 they operated all night services on the main system.[https://vicsig.net/trams/class/X1 X1 Class] Vicsig