Brake

Would it be possible if designed right and using the
right materials, to fit a brake calliper over the rear wheel
sprocket to aid rear wheel braking.

taz.

 

Most things are possible, practical is another question altogether.

If available brake force is the problem I'd direct my efforts to the
front brake. Dicking around with the rear is a waste of time and money.

If it's a question of confidence "Oooh, don't want to lock up the front
'cos I'm a girly pansy foo foo" I'd go out and practice. Or buy a car.

 

Most things are possible, practical is another question altogether.

I would agree with you for road use but The bike in question is one I use
over in a large quarry and I was thinking of shareing the load out on the
back
wheel a bit more.

I will ignor this coment. Say it again though and I'll scratch your eyes and
hit
you with my hand bag

taz

 

taz composed the following ...

I ride a '79 Beamish Suzuki Trials and a '91 Fantic 307 Trials .. the
Suzuki doesn't have brakes, or it does, but not so's you'd notice, the
Fantic can stop on a sixpence. The Suzuki is easier to ride 'on the brake'
but the Fantic locks up rear (and front) at will with very little effort.
It's almost impossible to feather the brakes, they seem either on or off (I
suspect a change of pads might help me with that), but I still mostly use
front.

Rear brake is only really used on very steep downhills, when it's just as
good locked, for balancing, or for sliding round obstacles and skids, it
doesn't really slow the bike much, the front does that, whatever the
conditions.

As my bit above suggests, I agree with Sweller ...

 

Rear brake is only really used on very steep downhills, when it's just as

That is the reason I asked. I use the bike in a quarry and I wondered
if adding a second calliper would be possible to share the stresses involved
out a bit.

taz.

 

taz composed the following ...

I use our bikes in quarries too. When you're riding competently, rear
brakes do do a surprising amount of work, but they don't slow you down much,
they just help balance the bike while the front slows it.

Whatever braking force you add at the rear will be negated by the lack of
grip. So long as the back wheel can lock, you don't really need anymore
force. If it can't lock, then there's a serious problem with the brake, and
you need to fix that before adding anything.

IMHO.

 

Using the patented Mavis Beacon "Hunt&Peck" Technique, taz

You'd have a problem with the chain lube getting on the pads.

--
Nigel - Manufacturer of the "Champion-105" range of rearsets

WS* GHPOTHUF#24 APOSTLE#14 DLC#1 COFF#20 BOTAFOT#150 HYPO#0(KoTL) IbW#41
ZZR1100, Enfield 500 Curry House Racer "The Basmati Rice Burner",
Honda GL1000K2 (On its hols) Kawasaki ZN1300 Voyager "Oh, Oh, It's so big"

 

the cont known as taz says...

Like this?

http://www.eurocomponentsusa.com/sprotor.html

 

... you thick twat.

 

<sigh> There's a bike with a sprocket caliper in just about every single
issue of BSH. Chop chains aren't lubed, they're /polished/.

 

Using the patented Mavis Beacon "Hunt&Peck" Technique, platypus

Oh. Silly me.

You'd have a problem with the chain lube getting on the pads if you ever
rode the fucking thing.

(Actually, on reflection, I have seen a combined sprocket and disk. But
only on belt drives.)

--
Nigel - Manufacturer of the "Champion-105" range of rearsets

WS* GHPOTHUF#24 APOSTLE#14 DLC#1 COFF#20 BOTAFOT#150 HYPO#0(KoTL) IbW#41
ZZR1100, Enfield 500 Curry House Racer "The Basmati Rice Burner",
Honda GL1000K2 (On its hols) Kawasaki ZN1300 Voyager "Oh, Oh, It's so big"

 

the cont known as Nigel Eaton says...

I posted a link earlier showing a chain sprocket.

 

Using the patented Mavis Beacon "Hunt&Peck" Technique, petrolcan

Well, yes. But you're Irish.

--
Nigel - Manufacturer of the "Champion-105" range of rearsets

WS* GHPOTHUF#24 APOSTLE#14 DLC#1 COFF#20 BOTAFOT#150 HYPO#0(KoTL) IbW#41
ZZR1100, Enfield 500 Curry House Racer "The Basmati Rice Burner",
Honda GL1000K2 (On its hols) Kawasaki ZN1300 Voyager "Oh, Oh, It's so big"

 

the cont known as Nigel Eaton says...

With £20m in his hip pocket

 

platypus says...

Chop chains are never used, they're trailered

 

Using the patented Mavis Beacon "Hunt&Peck" Technique, petrolcan

<G>

Go and get the Hippo MOTd then. ;^)

--
Nigel - Manufacturer of the "Champion-105" range of rearsets

WS* GHPOTHUF#24 APOSTLE#14 DLC#1 COFF#20 BOTAFOT#150 HYPO#0(KoTL) IbW#41
ZZR1100, Enfield 500 Curry House Racer "The Basmati Rice Burner",
Honda GL1000K2 (On its hols) Kawasaki ZN1300 Voyager "Oh, Oh, It's so big"

 

the cont known as Nigel Eaton says...

It's my new year resolution to do so.

 

Using the patented Mavis Beacon "Hunt&Peck" Technique, petrolcan

Good man. I'll take care of any necessary repairs (and re-taxing it in
the unlikely event of a pass).

I fully expect it to fail on something. You might want to give the
stanchions a good wipe down just before entering the MOT estaminet...

--
Nigel - Manufacturer of the "Champion-105" range of rearsets

WS* GHPOTHUF#24 APOSTLE#14 DLC#1 COFF#20 BOTAFOT#150 HYPO#0(KoTL) IbW#41
ZZR1100, Enfield 500 Curry House Racer "The Basmati Rice Burner",
Honda GL1000K2 (On its hols) Kawasaki ZN1300 Voyager "Oh, Oh, It's so big"

 

the cont known as Nigel Eaton says...

It'll pass. Trust me.

Fresh rag at the ready

 

Using the patented Mavis Beacon "Hunt&Peck" Technique, petrolcan

Make it a clean one. We don't want to skimp on maintenance, do we?

--
Nigel - Manufacturer of the "Champion-105" range of rearsets

WS* GHPOTHUF#24 APOSTLE#14 DLC#1 COFF#20 BOTAFOT#150 HYPO#0(KoTL) IbW#41
ZZR1100, Enfield 500 Curry House Racer "The Basmati Rice Burner",
Honda GL1000K2 (On its hols) Kawasaki ZN1300 Voyager "Oh, Oh, It's so big"