TT 2025

[mark_d]

Monday

Revised schedule

Update to be announced 0730 Monday morning

[mark_d]

Live timing link

https://timing.iomttraces.com/schedule.html

[mark_d]

Newcomers managed to do their speed controlled lap

The rest of the sessions have been cancelled due to weather

[mark_d]

Tuesday

Untimed

[mark_d]

Wednesday

[steve-e]

Nice one Mark. I'll stop posting separate threads now if you're putting all updates in one place Makes it much tidier

[steve-e]

Free Practice for the 2025 Isle of Man TT Races finally got underway on Tuesday evening, with untimed sessions for all classes. Heavy overnight and morning rain gave way to sunny intervals, allowing for a full-length session on the Mountain Course.

Several damp patches remained around the course, including Braddan, Laurel Bank, Glen Helen, the 11th Milestone, Glentramman, and Keppel Gate - but it was the Sidecars who were first out, starting slightly later than scheduled at 6:35pm.

Leading the field were last year’s double victors Ryan and Callum Crowe, the Manx duo tipped for top honours this year aboard the Opul/Kelproperties LCR Honda. They were followed by expected challengers Pete Founds/Jevan Walmsley (AWB Engineering DDM Honda) and Ben Birchall/Patrick Rosney (Hager/Wyckham Blackwell LCR Honda).

Other podium hopefuls included Lee Crawford/Scott Hardie (Team ARC/SJH Bodyworks LCR Kawasaki), Lewis Blackstock and newcomer passenger Oscar Lawrence (Dave Holden Racing LCR Yamaha), and 2022–23 World Champions Todd Ellis/Emmanuelle Clement (Brookland Sand & Aggregates CES Yamaha).

The Crowes were the first to complete a lap, however they opted to pull in after one lap, though the 35-minute session allowed crews the option of two. One team that didn’t get that opportunity was Ellis/Clement, who stopped at Kerromoar.

Crawford/Hardie continued for a second lap and now led on the road, as did Birchall/Rosney at a slightly slower pace. Newcomer and double British Champion Stephen Kershaw, with Rhys Gibbons in the chair, also completed a second lap after making adjustments.

At 7:20pm, the Supersport and Supertwin session took to the 37¾-mile course. Most front-runners opted to go out first on their Supersport machines - among them Dean Harrison (Honda Racing), Davey Todd (Milenco by Padgett’s Motorcycles Honda), James Hillier (Bournemouth Kawasaki), Josh Brookes (Jackson Racing powered by Prosper2 Honda), and Ian Hutchinson (MLav Racing Yamaha).

Two notable exceptions from the “big four” were Michael Dunlop and Peter Hickman, who chose different paths. Dunlop led the session away on his MD Racing Paton, joined by Mike Browne (Boyce Precision Engineering by Russell Racing Yamaha), who quickly pulled ahead and led on the road.

Browne led the lap, but Dunlop was close behind, making his first pass of the newly named ‘MD’s’ corner on closed roads. Fittingly, he passed the corner just before the 27th Milestone riding the Paton he claimed his 27th TT victory – and on the 27th May.

Following them was a tight group of top contenders - Harrison, Todd, Hillier, Hutchinson, Brookes, Conor Cummins (Burrows Engineering by RK Racing Ducati), and James Hind (North Lincs Components Suzuki). Also back on the Mountain Course for the first time since 2022 was two-time winner Gary Johnson (Team Schleizer Dreieck Suzuki).

One high-profile retirement on the opening lap was Brookes’ teammate Paul Jordan. Browne, however, continued into a second lap, as did Harrison, Todd, Hutchinson, and Cummins. Dunlop pulled in before heading back out on his Milwaukee Ducati, while Hickman also returned to switch to his Trooper Triumph by PHR Performance Supersport mount.

After completing two laps on the 600cc Yamaha, Browne squeezed in a lap on the KMR Kawasaki he’ll ride in the Supertwin races. Todd did the same on his new Milenco by Padgett’s Paton but stopped at Ginger Hall, ending his evening early and losing out on valuable big bike track time.

The evening concluded at 8:15pm with a 35-minute Superbike and Superstock session, giving riders a chance to complete two more laps of the Mountain Course. Brookes and Hind led the charge, followed by David Johnson (Platinum Club Racing Kawasaki), Jordan, Hillier (Muc-Off Racing Honda), and Phil Crowe (Crowe Performance BMW). Dunlop was out on his MD Racing BMW Superbike, while Hickman initially ran the Monster Energy by 8TEN Racing Superstock BMW.

Brookes, Hind, Johnson, and Jordan completed the lap together, with Dean Harrison gradually closing in. All but Brookes went straight through, while the Australian returned on his Superstock Honda. Nathan Harrison (H&H Motorcycles Honda) and John McGuinness MBE (Honda Racing) also got additional laps in before the session closed.

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https://www.iomttraces.com/racing/page/schedule/

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TT Supplementary Regulations

tt-2025-regulations-070425.pdf

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SIDECAR TT RACES
4.27 For machines complying with Regulations as specified in Appendix E of these
Regulations.
4.27.1 Maximum 600cc, 4 stroke, 4-cylinder, production based.
4.27.2 Maximum 675cc, 4 stroke, 3-cylinder, production based
4.27.3 Maximum 900cc, 4 stroke, parallel twin cylinder, production based
SIDECAR STOCK ENGINES
4.28 For machines complying with the Stock Engine Regulations as specified at the rear of
Appendix E of these Regulations
4.28.1 Maximum 600cc, 4 stroke, 4-cylinder, production based.
4.28.2 Maximum 675cc, 4 stroke, 3-cylinder, production based
4.28.3 Maximum 900cc, 4 stroke, parallel twin cylinder, production based


9.24. SIDECAR TT RACES:
9.24.1. 117% of the time set by the third fastest qualifying team in the class.

SIDECAR STOCK ENGINE TECHNICAL REGULATIONS
For Sidecar TT machines using Stock Engines, machines must comply with the Sidecar TT
Technical Regulations, except for the following requirements:
1. ENGINE TYPES

1.1 Only serial production engines are permitted for this class and can be of the
following type:
1.1.1 Maximum 600cc, 4 stroke, 4-cylinder, production based.
1.1.2 Maximum 675cc, 4 stroke, 3-cylinder, production based.
1.1.3 Maximum 900cc, 4 stroke, parallel twin cylinder, production based.
1.2 All components must comply with the homologated engine, subject to any
statements to the contrary specified in the below regulations. The machining
of components, for example trough polishing, micro spraying or lightening is
only authorised if expressly permitted in the following. The use of exotic
materials such as ceramics, metal matrix or aluminium beryllium is not
allowed. Parts can be omitted if not necessary for sidecar purpose.
1.3 The crankcase must remain as homologated.
1.4 Crankshaft and flywheel must remain as homologated. No modifications to
the flywheel are permitted.
1.5 Connecting rods must remain as homologated.
1.6 Pistons, piston rings and piston pins must remain as homologated.
1.7 The original cylinder head must remain as homologated. The cylinder head
gasket may only be replaced
1.8 Valves, valve guides, valve seats, valve springs and valve spring retainers must
remain as homologated. Valve keys and upper valve spring retainers may be
modified or replaced.
2 ALLOWED INDUCTION SYSTEMS

2.1 The carburettor or injection system must remain as homologated. Sensors and
fuel injectors must be standard parts of the homologated model, with the
exception of electronic and mechanical enrichment devices which may be
removed.
APPENDIX E
2.2 Intake bell mouths may be removed or altered. Homologated variable length
injection inlet track devices must remain as homologated by the FIM. Inlet
track devices may be removed.
2.3 Only standard camshafts as homologated may be used. No machining or kit
parts will be allowed. The Cam timing is free.
2.4 Chain, chain-tension and chain-guides may be modified or replaced. Belt
tensioning devices for belt drive systems are free.
2.5 Cam sprockets/wheels can be modified or replaced.
2.6 The engine control units (ECU) may be changed. Wiring harness, spark plugs, plus
wires and sockets may be replaced.
3 TRANSMISSION / GEARBOX
3.1 Transmission/Gearbox: No modifications are permitted with the exception of shifting
components to invert gear selection. Pinions, chain sprockets, chain pitch and size
may be modified. The use of an ignition breaker and a shift indicator is permitted.
3.2 The clutch system type shall remain as originally produced by the manufacturer.
Clutch springs; friction and drive discs may be altered or replaced. Mechanical back
torque limiting capabilities are permitted. No electronic or electrical support is
allowed.
4 IGNITION
4.1 Only standard generators for the homologated engine may be used. The generator
must supply the battery whilst the engine is running.
4.2 Electric starter shall be in place and work. The engine shall start on the grid with the
electric starter before the start of the race.
5 LUBRICATION / COOLING
5.1 Oil lubrication system is free. The oil sump and oil pump may be altered or replaced.
Installation of baffle plates is allowed.
5.2 The original water pump may be replaced.
6 NUMBER PLATES
6.1 Stock machines running in this class must use red number boards with white
numbers so they can be identified.

IDENTIFICATION
7.39. While qualifying and racing, all competitors are required to:
7.39.1. Wear an identification disc attached around the neck by a material approved
by a Technical Official. Identification discs shall be of a durable material
between 20mm and 25mm in diameter and having rounded edges with no
sharp or ragged projections.; and
7.39.2. An identity label attached on the inside of the leathers adjacent to the zip.
7.39.3. Both the disc and identity label must be indelibly marked / stamped with the
wearer’s full name and date of birth and is to be readable at all times. If a
permanent marker is used, then the information is to be refreshed to ensure
the information can be read by Officials / Medical personnel.
7.39.4. Wear competitors wristbands which has a unique number for each competitor
issued on arrival.
7.40. All Sidecar Drivers must also wear an elasticated armband in addition to the
requirement to wear an identification disc. All Drivers are to wear an elasticated
armband on their right upper arm. All elasticated armbands will be provided by the
Race Organiser. No Sidecar team will be allowed on the TT Course if a Driver is not
wearing an elasticated armband on the right upper arm.

[steve-e]

Who's in the Stock Class?

[mark_d]

Qualifying two

[mark_d]

Sunday

[steve-e]

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