Trail and off road bike silencers

[motad_uk]

We are getting a growing number of riders interested in a "proper" quiet silencer so it can be used on green lanes/off road etc without upsetting the neighbours!

the down side is that its rare to get more than one enquiry for each model- so we can never justify doing the development

would be interested to hear your input- we are talking about models needing to a full reflective baffle silencer to take off the tired original or to replace the noisy so called sports silencer the previous owner bolted on

let me know!

[bridgedino]

I'm waiting for someone within Europe to produce a road legal replacement system for the new Honda CRF250L. Till then I'm stuck with the factory fitted mild steel one, hopefuly not for too many winters.

Or does my request total the amount required to start production

[mysterious_rider]

[motad_uk]

[G]

Also consider that a lot of enduro competitions insist on fairly quiet bikes these days - for that reason 4 stroke motocross bikes are sometimes not allowed at all as the motocross exhausts tended to be louder than enduro ones.

For dirt bikes, definitely need something that can be got horribly covered in wet mud, not cleaned for a while and still be shiny when wiped off a while later - titanium exhaust on my CCM 404e was great for this.

[motad_uk]

[P.]

Noise is noise, I like bikes, people are welcome to make as much noise as they want.

I especially like loud exhausts...

https://super-user.co.uk/image11.png

Nothing wrong with noise.

But, as G says, some people need to have it quiet. So offering a removable baffle and various sizes.

Better yet, lower prices on things like titanium and carbon. We all know it doesn't cost £800 for the materials and time taken to make it. (Aimed specifically towards Arrow... but believe most other aftermarket people do similar)

[Alpha-9]

Would be nice if there wa ssomehting you could just slip over the end of your exhaust to silence it, without having to unbolt things and shit, a quick release system that's universal for any model of bike

But I don't think it works like that
We had the same problem trying to use mini-motos anywhere, they'd attract too much attention and were fuck loud, some dudes drove up to us and asked if we were flying planes lol.

My mate put a plant pot round the exhaust full of fibre glass
almost worked, except it melted
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Fzr-600 1999

[motad_uk]

generally we try and avoid "db eaters" and aim to design a unit to allow the right amount of flow- and at the right noise level. The "bungs" lower the noise but then also lower power.

we are aiming at using stainless- carbon and ti just dont stand up to the pressure of 10 or more years use to cover our warranty period.

Companies like Arrow working on new bikes have a huge development and testing cost-and that allied with the extra margins from a distributor and import costs push the prices up but at probably £3000 to e approve each model (and the reduced number of bikes sold -its not a surprise to see costs high

Motad has it easy (!) we just wait 4-5 years until the faults on oem exhausts show up in breakage and corrosion- then we make our version

[G]

I'm not a fan of carbon myself either - but do like TI - did have one road bike that was used on and off by me with a full TI system for ten years and it did fine.

For a dirt bike, light weight is going to be a factor for me - when you've dropped your bike 'the wrong way' on a hill or are just trying to flick it between some very hard trees as fast as possible it does seem to make a good bit of difference!

But appreciate this isn't so much your market.

[motad_uk]

[G]

The only time I've had to replace an exhaust on a dirt bike has been on my KTM200 - a 2 stroke and I'd knackered the exhaust from the expansion chamber impacting hard things too ofen.

One 'issue' I suspect is a lot of original exhausts on dirt bikes are made to be a good bit more corrosion resistant than normal bikes.
Also, people with a new dirt bike are quite likely to wash it well after each ride/


I wonder about something like the XR250, which are still really popular and getting on in years. But, while I've known quite a few people with them; not sure I've seen any incidence of them needing exhausts replacing.

[salty21]

early crf450's might be a good option. I have a standard endcan on my 2002 model and it's stupidly loud.. I have repacked it but it makes no difference, its still loud.

I cant even start my bike at home as a few of the neighbours have already complained about the noise so i have to push it to the end of the road before i go out everytime

Also makes working on the bike difficult aswell if the engine needs to be running for whatever reason. I'm currently in the middle of installing a rekluse auto clutch kit to my crf and to finish the installation i need to have the engine running and revs held at 4500 rpm to set the clutch cable up. This could start a full on war with more than one neighbour
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04 NSR 125(sold) ---- 03 CBR 600rr(sold) ----90 pan euro ST1100 '' ----02 CG 125
94 CB400 Super Four ---- 2000 VTR SP1 (sold) ---- 08 ninja p8f(sold, meh) ----05 CBR600rr

[P.]

Between certain hours, you can tell them to fuck off.

I used to launch my TTR through residential estates with its open can

[stevo as b4]

I've had both 2stroke trials bikes, Trail bikes an MX bikes over the years and i have always found that with a decent quality sufficiantly sized absorbtion type silencer, you can get noise levels to be what i would call reasonable. Certainely the difference it can make when you re-build a silencer and replace the oil soaked insulation can be very noticable.

As for 2strokes though they always make more noise from the expansion chamber if it's a light guage single skin material than they do from the silencer.

[motad_uk]