Isn't that the ultimately unbalanced front braking system? If split fore and aft any braking done by one hand is still balanced. I think in reality though that we don't go fast enough or brake hard enough for unbalanced systems to be critical. I certainly don't remember crashing on my only left / right trike because of unbalance braking.Use your right hand and the right brake ?
Ok we are getting no where here so this is my last take on this .Isn't that the ultimately unbalanced front braking system? If split fore and aft any braking done by one hand is still balanced. I think in reality though that we don't go fast enough or brake hard enough for unbalanced systems to be critical. I certainly don't remember crashing on my only left / right trike because of unbalance braking.
that would imply you are in the UK ?Im really learning something here
i did half an apprenticeship at BAe systems before i got bored standing by a bench with a file and windy drill...
So thankyou all for all this, it really helps and in the end ill come out of it knowing how to design and build a trike as opposed to knowing how to put one together... Its the difference between a mechanic and a fitter if you get what i mean..
Thats not trueThe bicycle laws do state you need two independent braking systems
Hey I'm no legal eagle , I suspect we are looking at single points of failure in an independent system ?cheers paul, will the rear and front not qualify as two independengt systems?
Maybe ?Thats not true
So this covers child's bikes some of which are sold with only a back pedal brake.Chapter 7a says, "every pedal cycle shall be equipped with at lest one braking system"
A fixi is a brake [ if you are strong enough ]7bi says that if you have a fixi you need 1 brakes but 7bii says ordinary bikes need 2 brakes
Again trying to legislate differently for child's bikes to adult bikes , so instead of saying bikes for say 10 year old's or 15 year old's they tried to stipulate seat height etc without realising recumbent's can have very low seats.but for any bike or trike with a max seat hight of 635mm only one brake will do.
Luckily the average copper on the beat has little idea of Bicycle laws , also being on a delta trike it looks like a wheel chair and so they are very conscious of the fact you could be disabled - use this knowledge to your advantage !But tell that to the Police if you get caught.
I only have one brake and so far so good.
2 levers, one doing two front wheels(twin cables), one doing rear wheel...Hey I'm no legal eagle , I suspect we are looking at single points of failure in an independent system ?
So 1 lever , 2 cables . 2 brakes [ as you envisage ] on your trike is only 1 system as if the lever fails then the brakes fail ?
So 1 lever , 2 cables , 2 brakes and 1 lever , 1 cable and 1 brake on your trike is 2 systems ?
Which ever brakes you chose to connect to which lever ?
Yeh its rubbing underneath... Front derailleur not set proper either or could also be a 2 chainwheel version rrying to run 3 cogs... Not even sure i got the right rear derailleur either cos i swapped out for 9 cogs cos it had a disc brake but all can be sorted..I assume it's the chain that's catching for the spanners sound. Tube guide is fine for the return as there's no tension on the chain. Don't use it for the power side of the chain though as you'll wear it out very quickly. For the power side you need a pulley or two. You'll also need to fabricate something close to the pulley to prevent the chain falling out of it.
Blowing holes is something we've all experienced. What welder are you using?
Usually in the UK it is easiest to get that black tubing sold at garden centres for irrigation ?Chain tube? Needs to be lined up front and rear with chain angle... I can bend 22mm copper.. Or even 20mm plastic overflow... But which or what else??
Cheers Paul, whats creep though?Usually in the UK it is easiest to get that black tubing sold at garden centres for irrigation ?
It comes in a coil so unwind about 6 ft and either hang it in the sun with weights on the bottom , or hang it full of boiling water or both , it will straighten.
As such a long chain actually has a drop due to it's weight you won't really be able to match that in the tubing , so just arrange to fix it loosely at each end and let the chain move it where it want's in i.e when it changes ring/sprocket in the middle you may need a third mount for some ' sag ' control.
Fixing could be either a length of bicycle chain which depending on orientation can control swing but allow front to back movement , or just use cable ties.
You want black ones as the white degrade under UV light.
Make sure you get a positive clamp at the front or rear to stop creep down the chain else the rear mech will try and eat it [ don't ask how I know this ]
Best thing to do is make two hole at one or both ends in line with the chain say 2" apart and run one cable tie through them , then suspend that cable tie with another one ot two ?