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Improving front light on a 125?

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Fullers1845
Renault 5 Driver



Joined: 21 Oct 2021
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PostPosted: 16:39 - 05 Feb 2024    Post subject: Improving front light on a 125? Reply with quote

As title really, using a cb125f for commuting and as it seems with pretty much all 125's, the front light is complete guff.

The high beam is fine for dark lanes, just would like more light on the road when riding with dipped beam.

I've 'upgraded' to an Osram bulb which did actually help quite a bit but still pants.

I'm limited by the 35w limit as the housing is only designed for the heat of CS1 type bulbs.

Other options I'm considering is an LED bulb or additional spot lights.
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stinkwheel
Bovine Proctologist



Joined: 12 Jul 2004
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PostPosted: 17:10 - 05 Feb 2024    Post subject: Reply with quote

Yes, good quality LED bulbs are the way forwards.

I use these ones.
https://www.classiccarleds.co.uk/products/compact-led-headlight-h4-p43t-472-motorcycle-hi-lo-beam-conversion-9-32v
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I did the 2010 Round Britain Rally on my 350 Bullet. 89 landmarks, 3 months, 9,500 miles.
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MCN
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PostPosted: 17:25 - 05 Feb 2024    Post subject: Reply with quote

LED is the way.
You need to get one that the reflector can focus properly.
If not focused, much of the useable light can be wasted or produce flare which can affect other road users.

There are laws to be aware of relating to vehicle lighting.

HID was a big thing a few years ago. The HID bulbs rarely were a legal replacement for standard bulbs. But many people don't care about that detail. Laughing
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Disclaimer: The comments above may be predicted text and not necessarily the opinion of MCN.
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Fullers1845
Renault 5 Driver



Joined: 21 Oct 2021
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PostPosted: 09:46 - 06 Feb 2024    Post subject: Reply with quote

Cheers, I'll look into an LED setup.
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DaddyStu
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Joined: 19 Jan 2023
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PostPosted: 18:41 - 06 Feb 2024    Post subject: Reply with quote

stinkwheel wrote:


Those fit a Tracer 700?
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Daddystu
Zontes 125-G1 (part-ex'd). Yamaha Tracer 700.
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stinkwheel
Bovine Proctologist



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PostPosted: 21:35 - 06 Feb 2024    Post subject: Reply with quote

DaddyStu wrote:
stinkwheel wrote:


Those fit a Tracer 700?


If it has an H4 headlamp, then yes. You need to find somewhere to fit a small electronics box too. Looks like they have a fairing so you're golden, I cable tied mine to the forks in the headlamp casquette of my enfield bullet.

A word of warning, I know nothing about canbus wiring and I don't know if your bike has it. Giving canbus different bulbs than expected might precipitate a tantrum if it does. I was at the Dragon rally last year and one guys BMW landed up immobalised in the middle of the field because he'd fitted a trailer and wired up a single LED stop and tail light to it. Computer said no and continued to say no even after he disconnected it. Because this is progress obviously.
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“Rule one: Always stick around for one more drink. That's when things happen. That's when you find out everything you want to know.
I did the 2010 Round Britain Rally on my 350 Bullet. 89 landmarks, 3 months, 9,500 miles.
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WD Forte
World Chat Champion



Joined: 17 Jun 2010
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PostPosted: 22:40 - 06 Feb 2024    Post subject: Reply with quote

Canbus uses a +2V/-2V signal bus and this can get the hump if summat
non Canbus interferes with it, but as with most things
there's a workaround using a resistor IIRC
Never had a Canbus vehicle to play with so I cant speak from personal experience though
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DaddyStu
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PostPosted: 00:37 - 07 Feb 2024    Post subject: Reply with quote

stinkwheel wrote:
]

If it has an H4 headlamp, then yes. You need to find somewhere to fit a small electronics box too. Looks like they have a fairing so you're golden, I cable tied mine to the forks in the headlamp casquette of my enfield bullet.

A word of warning, I know nothing about canbus wiring and I don't know if your bike has it. Giving canbus different bulbs than expected might precipitate a tantrum if it does. I was at the Dragon rally last year and one guys BMW landed up immobalised in the middle of the field because he'd fitted a trailer and wired up a single LED stop and tail light to it. Computer said no and continued to say no even after he disconnected it. Because this is progress obviously.


Have seen a youtube guy fit a set on a newer model Tracer but couldn't find his exact bulbs on the bay. He didn't have an extra box but the base of the bulbs was fat so it might've been in there. They were H7s iirc.
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Daddystu
Zontes 125-G1 (part-ex'd). Yamaha Tracer 700.
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MCN
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PostPosted: 01:38 - 07 Feb 2024    Post subject: Reply with quote

The simplest workaround for canbus is a bypass the canbus and install an 'analogue' system (Hooked up to the battery post.)
Or the online resistor thing.
BMW enthusiasts can even fit a fuse box retrofitted to their 'adventure chariots' (some of those fuse boxes are 'intelligent' too. Rolling Eyes )

BMW canbus will reset when the alien load has been removed.
The presence of canbus in BMWs bikes means that they do not have a fuse box. Over load is monitored by the canbus, which cuts power to any overloaded circuit.

My 110dB air horn shuts down the canbus if connected to the canbus horn circuit. The workaround is to fit a relay system controlled by the canbus horn circuit.
BMWs have a non-canbus 'Jack' thingy which allows one to plug in heated clothing or an air pump. So they did think of their owners.
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A100man
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Joined: 19 Aug 2013
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PostPosted: 11:08 - 07 Feb 2024    Post subject: Reply with quote

MCN wrote:

The presence of canbus in BMWs bikes means that they do not have a fuse box. Over load is monitored by the canbus, which cuts power to any overloaded circuit.


My Bro's 1987 (?) R100 doesn't have a fuse-box eiher, well not really.
When the headlight feed wore through and shorted on the headstock. the switch gear and cables caught fire - 80 years on and 'Ze Germans' are still trying to sabotage us..
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jeffyjeff
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Joined: 02 May 2020
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PostPosted: 15:53 - 08 Feb 2024    Post subject: Reply with quote

A100man wrote:
...When the headlight feed wore through and shorted on the headstock. the switch gear and cables caught fire - 80 years on and 'Ze Germans' are still trying to sabotage us..

It's quite simple, really. The conductor wire doubles as the fuse. Overcurrent conditions are readily ascertained by the presence of fire. When that happens, your friendly BMW dealer will gladly effect the repair for a modest charge. Don't worry, be happy Very Happy
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MCN
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PostPosted: 18:19 - 08 Feb 2024    Post subject: Reply with quote

Aww Naw.... the Beemir Haters have stirred. Rolling Eyes

Very Happy
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