'Rat and the B4 slipper

[Miggers]

What's the reasoning with fitting a B4 slipper to the Mad Rat?

Is the B4 slipper that much better?

Is it because the B4 slipper gives access to a greater range of gearing
with the various B4 spurs?

Tell yer Uncle Miggers please.

[DCM]

It is better...

[Miggers]

In what respect DCM?

Curious because I can get my stickies on a 'Rat slipper for
pence compared to the rather more expensive B4 jobbie.

Mark

[madmax]

one of the main reasons is to replace the slipper pads. the kit pads are ok but the plastic content in them means when they heat up they lock the slipper plates and transfer the power of the motor strait though the gearbox hense the idlers stripping.

another reason is it helps move the motor over the rear axles and can iprove the rear end grip.

[Miggers]

I see max.

Surely though,the B4's pads fit into the spur so is it not possible
to use just the B4 spur/pad combo with 'Rat slipper plates?

Mark

[zaquiz]

I see max.

Surely though,the B4's pads fit into the spur so is it not possible
to use just the B4 spur/pad combo with 'Rat slipper plates?

Mark

There is no need for buying AE spur. You can just remove the material from the Ansmann spur and glue the AE pads right on. Works fine!

[nosequehacer]

Hi all, the best way is to machine the Ansmann slipper plates and use Associated pads and spur.

[Tom3012]

Hi all, the best way is to machine the Ansmann slipper plates and use Associated pads and spur.

Why do you need to machine the plates? I just run a B4 spur gear and pads with normal kit slipper plates...

As to why they're used, as mentioned the pads are less plasticy and dont melt and stick causing the slipper assembly to lock up...

Tom

[Robbiejuk]

Why do you need to machine the plates? I just run a B4 spur gear and pads with normal kit slipper plates...
Tom

I think if you want to run the smaller Associated spur gear, i.e. the 75 then you need to machine them down. Only really useful if you are running stock though. :)

[Tom3012]

Ahh i see! Never thought about that!

[MikePimlott]

Why do you need to machine the plates? I just run a B4 spur gear and pads with normal kit slipper plates...

As to why they're used, as mentioned the pads are less plasticy and dont melt and stick causing the slipper assembly to lock up...

Tom

Also Tom, the plates rub on the plastic hexagon locator that the pads sit into therefore not making the best possible contact between plate and pad. I turned mine down so they was clear of the plastic locator.

[Miggers]

Ah.This is all good information.

So the 'Rat's plates are bigger than 31mm(the B4 slipper plate size) then.

How much did you take off them please Mike?

[MikePimlott]

I think they was 34-35mm, cant remember :lol: and yes i took them down to 31mm.

[Miggers]

Cheers fellow.

I have a set of "homegrown" 30mm plates on the bench at work,
so I think I'll be in there.

B4 pads are more "slippery" too.

Excellent information.

Many thanks to all that have answered my questions.

Mark