This might sound like a lighting/electrics matter, but I'm still refining my chassis fittings. I need to locate the headlamp bar, & fasten it to the upper chassis rail.
So - Q1: How far back from LC (the front end of the chassis) should this bar be? Q2: What dimension have other builders used, and with which nose cones?
TIA

Dick,

When I bought my nosecone, it had mouldings to accomodate the headlight mounting bar. Most nose cones I've seen are the same.

HTH.

Regards, Ian.

Dick, I reckon it would be better to settle on a nosecone first and then mount the bar wherever that particular nosecone has it's gaps. Like Ian said, most of them already have this gap moulded in.

I've a Triton nosecone, and can measure the distance if you like. I'm off to work, so won't be able to let you know before Tuesday.

Whatever position you put the bar, make sure you position the headlamps high enough to meet SVA requirements AND make sure on full bounce the wheel/cycle wing doesn't smack it!!

I agree with others, it's best to get the nosecone and see if it has a cutout to suit a bar.

A lot of people forget just how much stress is placed upon this bar by the weight of the headlamps acting on one spot, so it's worth making a strong bar.

To keep the weight stress down I changed to 5 inch headlamps from 7. Can't say I noticed much difference in lighting output. Suffice to say they work well on a dark country road at speed

Rob Lane

Thanks for all the feedback, guys.
Looks like I'll have to buy the fibreglass parts, and set up the nosecone as suggested.

Did anyone measure this?

How far back from the front end of the chassis have people mounted the headlight bar? My MK nosecone doesn't have a cutout for the bar so I have no reference.

Thanks

The MK headlight bar sits on the chassis directly above the top shocker mounting brackets. The headlight bar MK manufacture has the holes for mounting pre-drilled. Have a look in our photo archive at the Red Rocket build, this should give you an idea.

This is something I've been thinking about.

To minimise the chance of the wheels hitting the lights on lock they need to be mounted as close to the pivot point (effectively in line with the top shock mounting) as possible.

What are peoples opinion on the height of the lamps? I personally like the Caterham look where the lights are above the front wings I presume that if they are lower the wheels might block some of the light output.

I was going to use square (or maybe retangular) section making the ends turn up at about 70 degrees or so (need to work out the exact measurments) just where the bar exits the nose cone. Potentially I was thinking of adding a small gusset plate to strengthen the join and to provide a mounting below the headlight for a set of small spot lights for extra illumination.

Sort of this shape ________/

Andrew

Does the headlight bar have to be radiused for sva? i was planning to integrate my headlight bar with the top suspension mounts, i think stevem has done it this way.

Ned.

ned

any thing that can be touched by the testers 'mushroom' must have a suitable radius.

thanks to all for the feedback