London Buses route SL10 is a Transport for London contracted Superloop express bus route in London, England. Running between Harrow and North Finchley bus stations, it is operated by RATP Dev Transit London.

Quick Facts SL10, Overview ...

SL10
RATP Dev Transit London Alexander Dennis Enviro400EV at North Finchley bus station
Overview
Operator	RATP Dev Transit London
Garage	Harrow
Vehicle	Alexander Dennis Enviro400EV
Began service	25 November 2023
Predecessors	Route 125 Route 183
Route
Start	Harrow bus station
Via	Kenton Kingsbury Hendon
End	North Finchley bus station
Service
Level	Daily
Route map Route SL10 corridor Legend Pinner station  183  North Harrow Harrow bus station  SL10  Kenton station Kenton Charlton Road Kingsbury station Kingsbury Pipers Green Hendon Magistrates Court Hendon station Hendon the Quadrant Golders Green station  183  Hendon Central station Colindale station  125  Hendon the Quadrant Finchley Central station North Finchley bus station  SL10  Whetstone Osidge Hampden Square Southgate station Winchmore Hill  125  This diagram: view talk edit ← {{{previous_line}}}  {{{system_nav}}}  {{{next_line}}} →

Close

The route partially parallels routes 125 and 183.

The route was first proposed by Transport for London in April 2023 as the first proposed new route in the Superloop network of orbital express bus routes.^[1] At the time of the consultation, the route was proposed to be numbered X183.^[2][3][4]

The route was renumbered from X183 to SL10 before it was introduced.^[5][6][7] Route SL10 was introduced on 25 November 2023.^[8][9] It is operated by RATP Dev Transit London as a variation to its route 183 contract that it parallels between Hendon and Harrow.^[4]

Route SL10 operates via these primary locations:^[10]

• Harrow bus station for Harrow-on-the-Hill station
• Kenton station
• Kingsbury station
• Hendon station
• Hendon Central station
• Finchley Central station
• North Finchley bus station

The route operates at a frequency of a bus every 12 minutes on weekdays and Saturdays and a bus every 15 minutes on Sundays.^[11][12]