Hello boy1dr , and welcome to the forum!
First of all : loose the Light & Motion ARC , it’s outdated , and IMHO you’ll be better off without it…
As an XC rider and a flashaholic for a couple of years now, I found that a combination of 2 flashlights will get the job done wherever you go , and whatever you do.
As I was saying , you need 2 flashlights :
one Thrower mounted on the handlebar (to have a good view of the road even 25 meters ahead)
one Flooder mounted on the helmet ( to fill out the tunneling vision created by the thrower)
Recommended Throwers :
XinTD C8 V3 - 29.95 $ - with the option to choose the modes you want…
KEYGOS KE-5 - 21.99 $
SltrFire - 14.71 $( Keygos KE-5 clone , lumens somewhat 50 % of KE-5)
Recommended Flooders :
LXP - 28.5 $ - with the option to choose the modes you want…
ROCHE F12 Mini - 29.95 $ - with the option to choose the modes you want…
UltraFire UF-2100 - 15.32 $
UniqueFire UF-2100 - 11.99 $ (DinoDirect is known to send wrong items or stuff like that , I haven’t had problems with my 8 - 10 orders, but others did…)
N-light ST50 - 37 $ + shipping
Bike Mounts :
for handlebar - 1.10 $ ( it holds very well the flashlight, I haven’t had any problem with the flashlight slipping out when going down the mountain …)
for helmet - 1.65 $
or, a wide choice here …
18650 batteries that I use :
Hi-Max 2600 mAh protected - 5.99 + shipping ( but you can get a better price when buying more … )
Trustfire Flame Protected 3000 mAh - 11.70 $ (Real capacity ~ 2400 - 2500 mAh)
Trustfire Flame Protected 2400 mAh - 10.89 $(Real capacity ~ 2200 - 2400 mAh)
Panasoni NCR18650 2900 mAh - 7.69 $ ( don’t really know how well the protection works , but I think that it’s safe also to buy Panasonic uprotected because of the 2.5 V discharge limit…just be sure to change the battery if you see a drastic light decrease in output)
Panasoni NCR18650A 3100 mAh - 9.99 $( same as NCR18650 with buying unprotected)
and others (just search the forum )
Chargers for 18650 cells :
16340 TO 32650 LI-ION BATTERY CHARGER - 4.71 $
TrustFire TR-001 - 9.42 $
ML-102 USB CHARGER - 8.95 $ (you can also charge mobile phone/mp3 player etc. via USB, from the battery)
SYSMAX™ IntelliCharge Li-Ion Ni-CD Ni-MH 4-Channel ~ 25 $
XTAR WP2 II - 19.39 $ (you can also charge mobile phone/mp3 player etc. via USB, from the battery)
and others