What is London Buses route SL7?
{{Infobox bus line |number = SL7 |logo = |image = X26 WVL.jpg |caption = [[London General]] [[Wright Eclipse Gemini 2]] bodied [[Volvo B9TL]] at [[New Malden]] in April 2017 |bgcolor = #BE1769 |titlecolor = white |operator = [[London General]] |garage = [[London General#Croydon (C)|Croydon]] |vehicle = |pvr = 20 |predecessors = |night = No night service |start = [[Heathrow Central bus station]] |via = [[Hatton, London|Hatton]]<br>[[Teddington]]<br>[[Kingston upon Thames|Kingston]]<br>[[New Malden]]<br>[[Worcester Park]]<br>[[Cheam]]<br>[[Sutton, London|Sutton]]<br>[[Carshalton]]<br>[[Wallington, London|Wallington]]<br>[[East Croydon]] |end = [[West Croydon bus station]] |length = |level = Daily |frequency = 15 minutes |day = 04:10 until 01:56 |time = 80–130 minutes |map = }} '''London Buses route SL7''' is a [[Transport for London]] bus route in [[London]], England. It runs between [[Heathrow Central bus station|Heathrow Airport]] and [[West Croydon bus station|West Croydon]] bus stations and is operated by [[London General]]. It is the longest bus route in London, at 23.75 miles long. However, it only stops at certain stops because it is an express route.<ref>{{Cite web|last=Marius|first=Callum|date=2021-07-22|title=The London bus route so long it takes over two hours to reach its destination|url=https://www.mylondon.news/news/south-london-news/london-bus-route-long-can-21116649|access-date=2022-02-20|website=MyLondon|language=en|archive-date=20 February 2022|archive-url=https://web.archive.org/web/20220220133214/https://www.mylondon.news/news/south-london-news/london-bus-route-long-can-21116649|url-status=live}}</ref> It was renamed from '''X26''' to SL7 on 19 August 2023, as part of the [[London Superloop|Superloop]] plan.<ref>{{Cite web|last=Team|first=routeone|date=2023-08-18|title=Third London Superloop route to start as X26 becomes SL7|url=https://www.route-one.net/bus/t