SBS Transit Bus Service 125

SBS Transit Bus Service 125 is a trunk route from St Michael’s Ter and looping at Sims Drive, passing through St Michael’s Estate, Serangoon Road, Genting Lane, Kallang Way and Sims Drive, and returning via Kallang Way, Lorong Bakar Batu, Bendemeer Road and Kitchener Road.

Bus Service 125: Saint Michael’s – Sims Drive (Loop)
From Saint Michael’s
Looping at Sims Drive
  • Whampoa Rd
    – St. Michael’s Ter
    – Blk 114
  • Jln Bahagia
    – Blk 29
    – Bet Blks 33/34
  • Kim Keat Rd
    – Opp NKF
    – Bef Kim Keat Lane
  • Balestier Rd
    – Opp Balestier Pt
    – Opp Balestier Twrs
    – NorthLight Sch
    – Opp S’pore Khalsa Assn
  • S’goon Rd
    – Kwong Wai Shiu Hosp
    – Boon Keng Stn/Blk 102 NE9
    – Opp Bendemeer Pr Sch
    – St. Michael’s Pl
  • MacPherson Rd
    – Aft Tai Thong Cres
  • Genting Lane
    – Bef Genting Lk
  • Tannery Rd
    – Tannery Blk
  • Kallang Way
    – Aft Kallang Way 1
    – Aft Genting Lane
  • Aljunied Rd
    – Blk 125
  • Sims Dr
    – Bef Blk 53
    – Blk 45
  • Lor 17 Geylang
    – Bef Sims Ave
  • Sims Ave
    – Bef Lor 23 Geylang
  • Aljunied Rd
    – Opp Aljunied Stn EW9
    – Opp Blk 105
    – Opp Blk 125
  • Kallang Way
    – Aft Kallang Way 4
    – Aft Kallang Way 2
  • Tannery Rd
    – Bef Lor Bakar Batu
  • Lor Bakar Batu
    – Aft Kallang Sector
  • MacPherson Rd
    – Bef Siemens Ctr
  • Bendemeer Rd
    – MOM Svcs Ctr
    – Blk 54
    – Blk 44
    – Opp Boon Keng Stn NE9
    – Bef Lavender St
  • Jln Besar
    – Hoa Nam Bldg
  • Kitchener Rd
    – Bef Tai Hoe Hotel
  • S’goon Rd
    – Sri Srinivasa Perumal Tp NE8
    – Sri Vadapathira K Tp
  • Balestier Rd
    – S’pore Khalsa Assn
    – S’pore Indian Assn
    – Balestier Twrs
  • Whampoa Dr
    – Blk 82
  • Jln Bahagia
    – Blk 29
    – Bet Blks 33/34
  • Whampoa Rd
    – St. Michael’s Ter


  • Bus Service 125 towards both Saint Michael’s and Sims Drive duplicates along Whampoa Road and Jalan Bahagia. Check the bus destination before boarding.
    – Buses displaying the Red 125 Plate head towards Sims Drive
    – Buses displaying the White 125 Plate head towards Saint Michael’s.


Technical Information
Route Saint Michael’s Bus Terminal ↺ Sims Drive (Loop)
Passes Through St Michael’s Estate, Serangoon Rd, Genting Lane, Kallang Way, Sims Drive
Route Length 17.6 km
Travelling Time 80 mins
Operator Information
BCM Route Package Bishan – Toa Payoh Bus Package
Current Operator SBS Transit Ltd
Current Depot Ang Mo Kio Bus Depot (AMDEP)
Current Fleet 12-metre Double Deck Bus:
Volvo B10TL
12-metre Single Deck Bus:
Mercedes-Benz Citaro
Scania K230UB
Departure Times from Saint Michael’s
0600hrs 2300hrs (Daily)
Frequency Loop Service
0630hrs – 0830hrs: 11 – 12 mins
0831hrs – 1659hrs: 10 – 16 mins
1700hrs – 1900hrs: 10 – 16 mins
After 1900hrs: 15 – 18 mins


Route History

Service 125 serves the residents of both St. Michael’s Estate and Sims Drive with connections to Boon Keng MRT and Aljunied MRT, while serving Serangoon Road, Bendemeer Road, Kichener Road and Kallang Way. This route also serves as important connection between Kolam Ayer/Kallang Way Industrial Estates and Aljunied MRT, hence benefiting from heavy peak demand across that sector. A relatively large split-shift fleet copes with the peak hour demand from these industrial areas, along with Short Trip Service 125A operating only during the AM Peak hours.

This service calls at several bus stops in St. Michael’s Estate twice in different directions, i.e. towards Sims Drive and towards St. Michael’s Ter. Red and white service plates are used to distinguish the direction of travel in addition to Electronic Display Signages (EDS) on buses. Red plate indicates buses heading for Sims Drive; white plate indicates buses heading for St. Michael’s Ter.

MRT Stations Served
Special Departures
  • Sims Drive (Blk 45)   St. Michael’s Ter
    Weekdays: 0555hrs, 0606hrs, 0617hrs
    Sat/Sun/PHs: 0555hrs, 0611hrs
Short Trip Service
SBST Mercedes-Benz Citaro (SBS6060M) – Service 125A
  • Service 125A: Aljunied Road (Opp Aljunied Station) → MacPherson Road (Bef Siemens Ctr)
    Weekdays AM Peak only
    Frequency: 12 mins

Fare: Charges basic distance fares. See Bus Fares. Calculate your bus fare using LTA’s fare calculator on here.



Operator History
  • 1971 – 1973: United Bus Company Pte Ltd
  • 1973 – 2001: Singapore Bus Services Ltd
  • 2001 – Present: SBS Transit Ltd

The Bus Service Operating License (BSOL) for this route will be renewed in 2026 under the Bishan – Toa Payoh Bus Package. 

  • 1971 (11 Apr): Introduced between St. Michael’s Est and Delta Circus, operated by United Bus Company
  • 1975: Amended to Telok Blangah Way
  • ???: Amended to Jln Bt Merah via Telok Blangah Way
  • 1980/81: Amended to Bt Merah Int
  • 1985: Amended to St. Michael’s Ter
  • 1993: Shortened to Shenton Way; converted to a daytime weekdays & Saturday service
  • 2000 (Nov): Integrated with Service 20, amended to loop between St. Michael’s and Sims Dr.
  • 2003 (21 Jun): Amended to ply Jln Besar, Kitchener Rd and Serangoon Rd, under Phase 1 of NEL Rationalisation
  • 2011 (29 Mar): Extended service operations to Sundays & Public Holidays.
  • 2012 (25 Jun): Designated wheelchair-accessible bus route (WAB)
  • 2013 (Sep): Start of Double decker buses deployment
Past Routings


External Links & References

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