- News
- Reviews
- Bikes
- Accessories
- Accessories - misc
- Computer mounts
- Bags
- Bar ends
- Bike bags & cases
- Bottle cages
- Bottles
- Cameras
- Car racks
- Child seats
- Computers
- Glasses
- GPS units
- Helmets
- Lights - front
- Lights - rear
- Lights - sets
- Locks
- Mirrors
- Mudguards
- Racks
- Pumps & CO2 inflators
- Puncture kits
- Reflectives
- Smart watches
- Stands and racks
- Trailers
- Clothing
- Components
- Bar tape & grips
- Bottom brackets
- Brake & gear cables
- Brake & STI levers
- Brake pads & spares
- Brakes
- Cassettes & freewheels
- Chains
- Chainsets & chainrings
- Derailleurs - front
- Derailleurs - rear
- Forks
- Gear levers & shifters
- Groupsets
- Handlebars & extensions
- Headsets
- Hubs
- Inner tubes
- Pedals
- Quick releases & skewers
- Saddles
- Seatposts
- Stems
- Wheels
- Tyres
- Health, fitness and nutrition
- Tools and workshop
- Miscellaneous
- Tubeless valves
- Buyers Guides
- Features
- Forum
- Recommends
- Podcast
forum
Square seatpost rear light combo advice
I'm looking for advice on a rear light which works with my sl6 seatpost which has a square section rear. Unfortunately this makes all of the lights I currently own which are designed to mount to round section seatposts swivel round so they don't point backwards.
I do have a saddle rail mount but this means I can't use a seat pack so not a great option for longer rides.
Pictures of lights on websites etc rarely show the actual mounts so I'm hoping the road.cc readership has some experience and expertise to share! Any advice?
If you're new please join in and if you have questions pop them below and the forum regulars will answer as best we can.
Latest Forum Topics
Latest Comments
- imajez 4 hours 4 min ago
Nothing new about zebra [or light controlled] crossing on roundabouts. Sheffield has had them for decades, possibly since the 1970s.
- David9694 5 hours 34 min ago
Herefordshire man fined after throwing parking ticket...
- OnYerBike 6 hours 54 min ago
I'm sure that sort of thing will come sooner or later. But presumably a key ingredient (and why you'd turn to a big brand like Fizik) is knowing...
- muhasib 6 hours 59 min ago
"the cost to rebuild the M25 junction 10/A3 Wisley interchange is £317 million. The project is expected to be completed in 2025. "
- mark1a 7 hours 23 min ago
I think they did, from memory back in the 70s/80s... haven't seen one for years though, our current milkman uses a standard van, albeit hybrid.
- kingleo 8 hours 37 min ago
I believe that straight forks that are used on carbon frames are more dangerous than the old steel forks because they are more rigid, the old steel...
- S.E. 9 hours 9 min ago
Yes, sleep apnea produces more CO... I'm not aware of any doping effect but what do I know....
- Gd29 11 hours 17 min ago
That's true enough. But doesn't address my point that the chainset you get as a replacement will not physically fit chainrings from the chain set...
- brooksby 11 hours 48 min ago
In all fairness, it almost certainly NEVER happened…
Add new comment
5 comments
Now that's a project I can get behind!
Come to think of it some bottles use a plastic cork so that would be ideal, you cant usually tell from outside the bottle so you may have to drink a few to find out, hard work but youll just have to do it!
The cork thing sounds like a great idea, you probably don't need the full half, just enough of a segment to level off the curve in the light. I'm thinking that cutting up a silicon or rubber bung might be more permanent and satisfying, but then those things are a nightmare to cut and drill.
Ohh, and pictures of the eventual solution would be much appreciated.
whats the thickness / 'diameter' / size of the seatpost.
I would suggest cutting a cork in half (lengthways) and placing that behind the light to mimic a round seatpost?
Im surprised elasticated straps cause this issue, but then again Ive never tried mounting to a square post before.
Genius, I'll try that!
It's not the elasticated strap per se but the fact the light bracket has a rounded shape which doesn't quite fit over the rear square section and hence twists round. I'll try to take a picture when I get home