Author Topic: Loading up - distribution  (Read 6211 times)

ElyDave

  • Royal and Ancient Polar Bear Society member 263583
Loading up - distribution
« on: 19 July, 2022, 05:03:30 pm »
When touring by bike - better off to have more load at the front, or at the back?

i.e. panniers on a low rider rack and cargo cages plus carradice rack pack at the rear, or cargo cages and panniers the other way round?
“Procrastination is the thief of time, collar him.” –Charles Dickens

Oscar's dad

  • aka Septimus Fitzwilliam Beauregard Partridge
Re: Loading up - distribution
« Reply #1 on: 19 July, 2022, 05:05:54 pm »
When touring by bike - better off to have more load at the front, or at the back?

i.e. panniers on a low rider rack and cargo cages plus carradice rack pack at the rear, or cargo cages and panniers the other way round?

Good question.  I've always thought you should have load distributed front and back with more on the rear.  But then you see American tourers with most of the weight on the front, sometime using low riders, sometimes not.  Confusing.

Cudzoziemiec

  • Ride adventurously and stop for a brew.
Re: Loading up - distribution
« Reply #2 on: 19 July, 2022, 05:16:18 pm »
More on the back would be my choice but I guess it does depend on the bike, maybe the terrain and quite probably also the rider. Generally the effects become less as you gain speed, so experiment and if you do crash, it won't hurt much! Probably.
Riding a concrete path through the nebulous and chaotic future.

LittleWheelsandBig

  • Whimsy Rider
Re: Loading up - distribution
« Reply #3 on: 19 July, 2022, 05:28:34 pm »
More on the front makes it easier to ride out of the saddle, can reduce twitchiness and minimises the load on the weaker rear wheel. If the geometry is optimised for front loading, the bike usually steers better loaded than unloaded.

More on the back is traditional and has less adverse effect on steering at low speed while sitting in the saddle. Get out of the saddle and everything goes to hell though.
Wheel meet again, don't know where, don't know when...

Re: Loading up - distribution
« Reply #4 on: 19 July, 2022, 06:51:23 pm »
Put the luggage in a trailer and tow it. Easier to pack when wet and you can keep a wet tent as aired as possible till you have a opportunity to dry it properly 😉
the slower you go the more you see

Basil

  • Um....err......oh bugger!
  • Help me!
Re: Loading up - distribution
« Reply #5 on: 19 July, 2022, 07:47:37 pm »
This discussion reminds me of the time on my 1999 eclipse tour.  I had not learned the importance of front panniers.   Everything was loaded on the back. 2 huge panniers and a heavily laden top box.
After stopping on a hill, I found that I couldn't restart. In a low gear any pressure on the pedals simply rotated the bike and me around the rear wheel.
Admission.  I'm actually not that fussed about cake.

ElyDave

  • Royal and Ancient Polar Bear Society member 263583
Re: Loading up - distribution
« Reply #6 on: 19 July, 2022, 08:11:57 pm »
More on the front makes it easier to ride out of the saddle, can reduce twitchiness and minimises the load on the weaker rear wheel. If the geometry is optimised for front loading, the bike usually steers better loaded than unloaded.

More on the back is traditional and has less adverse effect on steering at low speed while sitting in the saddle. Get out of the saddle and everything goes to hell though.

Fairlight Faran, I think optimised for front loading
“Procrastination is the thief of time, collar him.” –Charles Dickens

Re: Loading up - distribution
« Reply #7 on: 19 July, 2022, 08:34:08 pm »
Fairlight Faran, I think optimised for front loading
As in low trail?  That might be a useful bit of detail to include in the OP as it changes everything.

Re: Loading up - distribution
« Reply #8 on: 19 July, 2022, 08:38:59 pm »
I always understood that rather more weight on the back was preferred. Think I read 55%/45% as a suggestion somewhere.

But that's for general riding. For touring, there's also the question of loading low or high. The bike ought to be more stable with weight as low as possible whereas, walking, you often try to get it high (because you're leaning forward and then it goes straight down your spine, whereas weight loaded low is behind you and tries to tip you backwards).

ElyDave

  • Royal and Ancient Polar Bear Society member 263583
Re: Loading up - distribution
« Reply #9 on: 19 July, 2022, 09:33:44 pm »
Fairlight Faran, I think optimised for front loading
As in low trail?  That might be a useful bit of detail to include in the OP as it changes everything.

On the Faran 2.0 we use ‘low-mid trail’ to provide better handling with a front
load and also fast ‘road-like’ handling when using no load and large tyres (e.g.
road plus - 650 x 47 or 700 x 38-45). Trail with a 650x47mm tyre is 45-48mm
depending on the frame size. So by reducing the trail the stability is reduced,
but then a front load is added to give a desired stability, or rather that it is ‘not
too stable’ with a front load and still stable enough when unloaded.
“Procrastination is the thief of time, collar him.” –Charles Dickens

Kim

  • Timelord
    • Fediverse
Re: Loading up - distribution
« Reply #10 on: 19 July, 2022, 09:42:23 pm »
I think it's one of those suck-it-and-see things.  It will depend on the geometry of the bike, the weight and height of the rider, and what sort of riding (and indeed wheeling) you're doing.

I reckon that putting at least some weight on the front is generally a good idea, but if that means loading the steering (which it does on most diamond-framed bikes) the effect on handling may be undesirable.   Similarly, it depends on what practical options you have for attaching luggage - low-rider panniers are great until there's overgrown singletrack, strapping your sleeping bag to your handlebars might interfere with lights, and so on.

(I assume in this context 'cargo cages' are those giant bottle-cage-style bikepacking mounts.)

Trailers are an underrated option if you're never going anywhere near a train or similar, and there aren't suspension implications.

Re: Loading up - distribution
« Reply #11 on: 19 July, 2022, 09:44:26 pm »
Fairlight Faran, I think optimised for front loading
As in low trail?  That might be a useful bit of detail to include in the OP as it changes everything.

On the Faran 2.0 we use ‘low-mid trail’ to provide better handling with a front
load and also fast ‘road-like’ handling when using no load and large tyres (e.g.
road plus - 650 x 47 or 700 x 38-45). Trail with a 650x47mm tyre is 45-48mm
depending on the frame size. So by reducing the trail the stability is reduced,
but then a front load is added to give a desired stability, or rather that it is ‘not
too stable’ with a front load and still stable enough when unloaded.
I've just had a look and that's fairly low compared to a traditional touring bike.  I've never owned a bike like that, everything I've read would suggest that small and heavy stuff should go on the front and light bulky stuff on the back, but I have no experience of that. I've delegated my previous post, based on bikes I do have experience of, I suspect it was wrong.  Along with any other well meaning advise you get which isn't based on experience with a low trail bike.

Kim

  • Timelord
    • Fediverse
Re: Loading up - distribution
« Reply #12 on: 19 July, 2022, 09:47:28 pm »
The bike ought to be more stable with weight as low as possible

I think it's more subtle than that.  All things being equal, a bike with a higher centre of mass should be more stable when ridden, and a lower centre of mass should be more stable when being pushed.  But if you're adding mass to the forks/handlebars, the further from the steering axis it is the more it will affect the handling.

Cudzoziemiec

  • Ride adventurously and stop for a brew.
Re: Loading up - distribution
« Reply #13 on: 20 July, 2022, 07:46:04 am »
And perhaps that's the reason for the fork cage bosses being tilted backwards?
Riding a concrete path through the nebulous and chaotic future.

ElyDave

  • Royal and Ancient Polar Bear Society member 263583
Re: Loading up - distribution
« Reply #14 on: 20 July, 2022, 07:58:16 am »
The bike ought to be more stable with weight as low as possible

I think it's more subtle than that.  All things being equal, a bike with a higher centre of mass should be more stable when ridden, and a lower centre of mass should be more stable when being pushed.  But if you're adding mass to the forks/handlebars, the further from the steering axis it is the more it will affect the handling.

Much simple on the Cruzbike, drape the banananana bags over the seat and all the weight dangles nicely underneath you.
“Procrastination is the thief of time, collar him.” –Charles Dickens

Kim

  • Timelord
    • Fediverse
Re: Loading up - distribution
« Reply #15 on: 20 July, 2022, 08:21:44 am »
The bike ought to be more stable with weight as low as possible

I think it's more subtle than that.  All things being equal, a bike with a higher centre of mass should be more stable when ridden, and a lower centre of mass should be more stable when being pushed.  But if you're adding mass to the forks/handlebars, the further from the steering axis it is the more it will affect the handling.

Much simple on the Cruzbike, drape the banananana bags over the seat and all the weight dangles nicely underneath you.

It's a substantial advantage to a recumbent for loaded touring: Bike+rider are naturally a bit front-heavy, so you can load the rear with impunity, and banananana bags or low-rider panniers allow you to load the middle without affecting the steering.

I think the Azub Six wins the award for well-distributed bonkers amounts of luggage:


Re: Loading up - distribution
« Reply #16 on: 20 July, 2022, 09:07:33 am »
I think it's more subtle than that.  All things being equal, a bike with a higher centre of mass should be more stable when ridden, and a lower centre of mass should be more stable when being pushed.  But if you're adding mass to the forks/handlebars, the further from the steering axis it is the more it will affect the handling.
Low loading is surely the reason for the positioning of front panniers on a traditional tourer? We used to call them "low riders" - I think that was a Blackburn product name? Now they are universal, except on cheap racks.

Re: Loading up - distribution
« Reply #17 on: 20 July, 2022, 09:23:15 am »
But if you're adding mass to the forks/handlebars, the further from the steering axis it is the more it will affect the handling.
I'm sure that's always the case, but the extent is effected by where the tyre's contact patch is in relation to that axis.
I said I had no experience with low trail bikes, not strictly true, I have a Brompton.  The handling on that is greatly improved by weighting the front.

Re: Loading up - distribution
« Reply #18 on: 20 July, 2022, 09:28:12 am »
That’s some impressive recumbent loading.  I just have seat bag and two front panniers on rear rack for camping.  But then my cycling tent is on the small side, more of a hooped bivvy you lie down in.

Re: Loading up - distribution
« Reply #19 on: 20 July, 2022, 09:42:26 am »
Cycle camping using an upright I found that the bike handled best with smaller, heavy things like tools, cooker, bike locks etc. on the front forks and bulkier, lighter stuff like clothes, sleeping bags, etc. On the rear. 

The front loading tended to balance the bike nicely as well as to dampen the steering somewhat making it a much nicer machine to handle over the miles.

ElyDave

  • Royal and Ancient Polar Bear Society member 263583
Re: Loading up - distribution
« Reply #20 on: 20 July, 2022, 11:41:24 am »
This was the Cruzbike on tour a couple of years ago.  More weight on the back than I'd like as it suffers from traction issues (I'm actually looking to get some 650b wheels built for it to allow me to use bigger, grippier tyres). 

“Procrastination is the thief of time, collar him.” –Charles Dickens

Re: Loading up - distribution
« Reply #21 on: 20 July, 2022, 03:17:30 pm »
Is that green Velcro strap your parking brake?

ElyDave

  • Royal and Ancient Polar Bear Society member 263583
Re: Loading up - distribution
« Reply #22 on: 20 July, 2022, 04:21:39 pm »
It is indeed, front end tends not to stay still when parked resulting in embarrassing crashing of bike to ground.  That strap came from Wilko's I think, intended to keep a coil of hose tidy.
“Procrastination is the thief of time, collar him.” –Charles Dickens

hellymedic

  • Just do it!
Re: Loading up - distribution
« Reply #23 on: 26 July, 2022, 03:34:25 pm »
It's a long time since I was on the road with a lot of kit.

I mostly did not like bar bags.

Liked low-rider front panniers, mostly with 'important' things, back panniers for bulky stuffs. Usually designated one as (mostly) 'day' and one 'night', with other bulky stuff atop rear rack.

Cudzoziemiec

  • Ride adventurously and stop for a brew.
Re: Loading up - distribution
« Reply #24 on: 26 July, 2022, 03:44:45 pm »
I tried the day and night idea with my Gorilla bags last month, identifying them with stickers of relevant musicians* because they're otherwise identical and symmetrical. But it didn't really work as essentially there's less night stuff (that fits in those bags at least). Also, the stickers started peeling off.

*Grace Slick for "Morning maniac music" and Gil Scott-Heron for, well, just because.
Riding a concrete path through the nebulous and chaotic future.