Disruption of the light throw
#26
Senior Member
Joined: Apr 2025
Posts: 688
Likes: 684
A light for commuting is not about you shining at people it is about good visibility and that doesn't really provide it. People need to know where your bike is and is going not where your head may decide to turn. Helmet lights are fun but are a tertiary light unless mountain biking where it is less about other seeing you.
My racks also have reflecrive tape.

#28
Clark W. Griswold




Joined: Mar 2014
Posts: 18,248
Likes: 6,624
From: ,location, location
Bikes: Foundry Chilkoot Ti W/Ultegra Di2, Salsa Timberjack Ti, Cinelli Mash Work RandoCross Fun Time Machine, 1x9 XT Parts Hybrid, Co-Motion Cascadia, Specialized Langster, Phil Wood Apple VeloXS Frame (w/DA 7400), R+M Supercharger2 Rohloff, Habanero Ti 26
Plenty of cyclists run helmet mounted lights. I can adjust the brightness so as not to blind people and still be visible. I ride on the trails in the dark so a powerful helmet light is necessary for me. When I ride in urban area in traffic I just use lower setting.
My racks also have reflecrive tape.

My racks also have reflecrive tape.

Reflective tape is fun and is not a bad thing but lights are crucial. Anything that is not visible from a naked eye is probably not going to be visible to a car without headlights and I see way too many of them these days. Certainly it is better than nothing but being actively visible is the key. I worry about passive stuff after the active lighting is dialed and on point.
#29
Gruppetto Bob




Joined: Sep 2020
Posts: 11,449
Likes: 11,682
From: Seattle-ish
Bikes: Orbea Orca, Bianchi Infinito & Campione de Mundo
I would ditch the front bag and instead have a rear rack where a trunk rack or pannier can be hung. Vision at night is bad enough as is, so why add an additional obstruction?
__________________
“A watt saved is a watt earned” 🚴🏻♂️
Not a CAT
“A watt saved is a watt earned” 🚴🏻♂️
#30
Thread Starter
Senior Member


Joined: Mar 2024
Posts: 1,841
Likes: 309
#32
Old and in the way



Joined: Jul 2004
Posts: 1,469
Likes: 1,052
From: City of Oaks, NC
Bikes: Look 765 Optimum, Spesh Aethos
Sheesh what a mess.
Proper mounting of a headlight on the centerline of the bike.

.
Proper mounting of a headlight on the centerline of the bike.

.
__________________
--
Shad, Kitted up half wavin m’fer.
--
Shad, Kitted up half wavin m’fer.
#33
Does your front fender bolt hole go all the way through your fork crown ?
If yes, there are many mounts available :
If yes, there are many mounts available :
#34
Senior Member


Joined: May 2010
Posts: 5,603
Likes: 2,468
From: Bastrop Texas
Bikes: Univega, Peu P6, Peu PR-10, Ted Williams, Peu UO-8, Peu UO-18 Mixte, Peu Dolomites
Here in Texas ya need a front white light and a red tail light mounted on the bicycle from dusk to dawn. For true illumination of the road most prefer a high intensity light on the helmet. Especially off road riders.
And of course to keep the four wheedlers off your back a reflective vest...
And of course to keep the four wheedlers off your back a reflective vest...
__________________
No matter where you're at... There you are... Δf:=f(1/2)-f(-1/2)
Last edited by zandoval; 10-24-25 at 09:59 PM.
#35
Happy With My Bikes


Joined: Sep 2020
Posts: 2,773
Likes: 3,287
From: Oklahoma
Bikes: Hi-Ten bike boomers, a Trek Domane and some projects
Find a shop that will hold your helmet for you and have them wrap your bars. And while you are there, ask them about your light. They can sell you another one to mount on the other side of the bag.
__________________
"It is the unknown around the corner that turns my wheels." -- Heinz Stücke
"It is the unknown around the corner that turns my wheels." -- Heinz Stücke
#36
Senior Member
Joined: Apr 2025
Posts: 688
Likes: 684
If you want to be seen a light may not be enough in an urban area. What about daytime visibility ?.
When I bike commute I also wear a high visibility shirt.
This shirt is made from mesh fabric. Since I wear dark clothes I just slip this high visibility shirt over whatever clothing I am wearing

When I bike commute I also wear a high visibility shirt.
This shirt is made from mesh fabric. Since I wear dark clothes I just slip this high visibility shirt over whatever clothing I am wearing

#37
SE Wis

Joined: Apr 2005
Posts: 11,548
Likes: 4,329
From: Milwaukee, WI
Bikes: '68 Raleigh Sprite, '02 Raleigh C500, '84 Raleigh Gran Prix, '91 Trek 400, 2013 Novara Randonee, 1990 Trek 970
#41
Passista


Joined: Jul 2005
Posts: 8,247
Likes: 1,211
Bikes: 1998 Pinarello Asolo, 1992 KHS Montaña pro, 1980 Raleigh DL-1, IGH Hybrid, IGH Utility
You could use an accesory mount to put the light higher over the bag.
#42
Senior Member


Joined: Jul 2005
Posts: 6,916
Likes: 1,260

1200L (rarely use full power). A 'proper' bike light will have an optional headlight mount that it clicks in and out of. And I have total and easy adjustment of the beam angle. I'm not seeing where you have that ability, and the default angle you have set things to looks pretty uncomfortable. As nice as having a seriously powerful helmet light is, the heavy lifting is really done by the two MagicShine 808's on the bars.

Old as dirt, but they keep going, and going ... Each one has it's own 4 x 18650 4400 mah battery pack.
The piece de resistance is that at Zero Dark Thirty, with everything blazing, looking head on from 1/4 mi. or more, and I (we) look just like an oncoming diesel locomotive.

#43
Full Member
Joined: Aug 2025
Posts: 205
Likes: 96
In this case it's perfectly fine, the light is (slightly) above the bag, so anyone who is taller than your bike should see you.
#44
Senior Member



Joined: Aug 2010
Posts: 12,726
Likes: 2,105
From: Madison, WI
Bikes: 1961 Ideor, 1966 Perfekt 3 Speed AB Hub, 1994 Bridgestone MB-6, 2006 Airnimal Joey, 2009 Thorn Sherpa, 2013 Thorn Nomad MkII, 2015 VO Pass Hunter, 2017 Lynskey Backroad, 2017 Raleigh Gran Prix, 1980s Bianchi Mixte on a trainer. Others are now gone.

Graphic from: https://www.peterwhitecycles.com/dualsetupfork.htm
Or, I think you have a hole through your fork crown, as it looks like you have a fender mount bolt there. There are lots of light brackets for a fork crown. I could not find a long enough bolt for my light bracket on my fork crown and fender setup, so I bought a piece of 5mm threaded rod at the hardware store, or maybe I used 6mm, I do not recall which. Cut that with a hacksaw.

But I can't tell from your photo if there is enough room under your handlebar bag, you can see in my photo above that I had enough room for it.
Or, you can buy a knob that you can thread onto a quick release skewer and put the light on that knob. Looks like you have through axle, not quick release. But since you have a fork mount for your fender bracket down there, you could thread a knob onto that. This one is a bit pricy, I seen things like this cheaper elsewhere. But mounting a light this low is not ideal, you get large shadows behind things like leaves, etc., and it is harder to see how big bumps are when there are really big shadows behind the bumps.
https://www.campfirecycling.com/prod...nt-p-2576.html
You have to think outside the box for this kind of problem.
#45
I recall seeing some form of knob that could be attached to a fork blade with a zip tie, but do not recall where I saw it. Did a google search and saw this graphic:

Graphic from: https://www.peterwhitecycles.com/dualsetupfork.htm
You have to think outside the box for this kind of problem.

Graphic from: https://www.peterwhitecycles.com/dualsetupfork.htm
You have to think outside the box for this kind of problem.
#46
Senior Member

Joined: Jul 2009
Posts: 8,144
Likes: 11,080
Bikes: Colnago, Van Dessel, Factor, Cervelo, Ritchey
#47
Thread Starter
Senior Member


Joined: Mar 2024
Posts: 1,841
Likes: 309
As was pointed out, the bag integrates a Garmin mount which is compatible with lights that allow for stacking of the computer. I ordered the Ravemen FR500 which should be a suitable solution.


#48
Senior Member

Joined: Jul 2009
Posts: 8,144
Likes: 11,080
Bikes: Colnago, Van Dessel, Factor, Cervelo, Ritchey
#49
SE Wis

Joined: Apr 2005
Posts: 11,548
Likes: 4,329
From: Milwaukee, WI
Bikes: '68 Raleigh Sprite, '02 Raleigh C500, '84 Raleigh Gran Prix, '91 Trek 400, 2013 Novara Randonee, 1990 Trek 970
#50
aka Tom Reingold




Joined: Jan 2009
Posts: 44,160
Likes: 6,381
From: New York, NY, and High Falls, NY, USA
Bikes: 1962 Rudge Sports, 1971 Raleigh Super Course, 1971 Raleigh Pro Track, 1974 Raleigh International, 1975 Viscount Fixie, 1982 McLean, 1996 Lemond (Ti), 2002 Burley Zydeco tandem
I make fork mounts for my headlights. This allows me to have bags and such on the handlebar.
See my album which shows how I did it. I've made others not with copper pipe but with PVC pipe.

See my album which shows how I did it. I've made others not with copper pipe but with PVC pipe.

__________________
Tom Reingold, tom@noglider.com
New York City and High Falls, NY
Blogs: The Experienced Cyclist; noglider's ride blog
“When man invented the bicycle he reached the peak of his attainments.” — Elizabeth West, US author
Please email me rather than PM'ing me. Thanks.
Tom Reingold, tom@noglider.com
New York City and High Falls, NY
Blogs: The Experienced Cyclist; noglider's ride blog
“When man invented the bicycle he reached the peak of his attainments.” — Elizabeth West, US author
Please email me rather than PM'ing me. Thanks.









