Pitbike racing - SM

[G]

[STONEY!]

Check for play on the sprocket on the cush drive rear wheels, I went to buy a set for my 140 as I want to have a go at this sm racing, the wheels where apparently only a couple of months old and the studs for the sprocket had ovalled out the alloy hub and the centre bearing had also worn the hub to the point it just fell out when removed.

this may just be a one off but it put me off that style of wheels. pretty sure they where a set of these:

https://www.funbikes.co.uk/Pit_Bike_Supermoto_Mag_Wheels_KSR_Style%283688%29.aspx

[Snorty]

Appreciated!

Closest track I can find to me is 100 miles away still. One near York say they are considering allowing pit bikes but the noise ramifications need some thought.
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Current: Yamaha FZ1 '07 | GSXR 750 SRAD

Past: CB125TDC | TZR125 | GPZ500 | CBR600F3 | ZX9-R | GSXR1000 K4

[garth]

Stoney - my bro is selling a set of 10's with decent Sava MC31's on. Interested?
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You ain't a has been if you never was

[G]

They do look similar at least - I'll keep an eye on them, ta.
Bike came from someone happy to chuck cash/time at it, so hopefully will be ok.

I too could also have a set of 10' wheels with those tyres on for sale, but Garth got there first and I probably want more as I never even used them myself after buying them .

[STONEY!]

I was planning on going with 12's everyone I've spoken to seems to swear by them with the exception of use on inside tracks.

[Fladdem]

OK, I'm convinced. I don't really like off-roading on my pitbike, especially when I have my two 250's. But it does have 12" supermoto wheels on it...

I've been looking at regulations, and I'm not sure whether mine would fit into the stock 140 class or not. I'm not 100% sure what mods have been done to it. I know it has a different carb, different exhaust, different suspension, a Z40 cam and I think thinner gaskets in the engine and a high compression piston and a lightened flywheel/stator, which I think might push it into the open class?

So essentially, I just need some handguards, peg sliders, axle sliders (F&R) and then lockwire the sump and filler plug and fit a catch can? Then figure out which class I'd fall into.

I'll need leathers, which I was thinking about buying some anyway. Am I allowed an MX lid? I have never owned a road bike helmet...

I also don't know how to feed the catch can/where to mount one if I did. Any pictures of racebikes to explain how to build them up would be good, thanks.
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Current:1991 Honda MT50 (Soon to be a H100/MTX/MT5 hybrid), 1976 Honda Cub C70, 2005 Honda Varadero 125, 1993 Yamaha TTR250 Open Enduro , 2010 Road Legal Stomp YX140, 1994 Honda CRM 250 MK III, 1999 Cagiva Mito 125, 1992 Honda CB400 Super Four, Stomp T4 230, 1984 Honda H100s, 2009 Sym XS125K
Past:2003 Aprilia RS125, 1982 Kawasaki GPZ550(FREE BIKE!)
I'm having more fun than a well-oiled midget.

[G]

If you're late to enter, the 140 class normally fills up first anyway I think - I entered 160 and open on my stock 140 because that class was full.

Pace isn't massively different I don't think.

I've just taken a chunk out of my head and added a load of grazing to the side, so probably no helmets for me for a while .

[Fladdem]

[STONEY!]

Im getting there slowly, got some 12" wheels and tyre's now. skateboard wheels and lockwire on the way, cant help but think I should get a rear shock and maybe better forks too, mine are brand new but only the stock stomp stuff and it feels rubbish!

mine is also road registered

[garth]

Change the shock before the forks, cheaper and a bigger improvement
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You ain't a has been if you never was

[STONEY!]

Yep that's the plan the rear shock is obviously shite, the forks seem better but not brilliant.

think I'm gonna go for a DNM MT-RC for 130 quid and probably later get a set of stomp SP forks for about 170 quid.

the bike was 400 but looks like I'm going to spend double that on it to get it up to scratch lol

[G]

If anyone wants to sell 'road legal', could be interested as fancy getting one of mine road legal.

[Fladdem]

Mine was made road legal by buying a VIN plate and logbook from a cheapo pit bike. Mine will cost about 50 quid to prep, I think. It's already got upgraded suspension front and rear Actually, it may cost a bit more if the tyres aren't up to scratch for track. Got its MOT on Saturday see if it gets a daytime only MOT.

I think I'm serious about this adventure, I've always thought supermoto was my favourite racing, especially proper SM with jumps and gravel. This is just a cheap taster.
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Current:1991 Honda MT50 (Soon to be a H100/MTX/MT5 hybrid), 1976 Honda Cub C70, 2005 Honda Varadero 125, 1993 Yamaha TTR250 Open Enduro , 2010 Road Legal Stomp YX140, 1994 Honda CRM 250 MK III, 1999 Cagiva Mito 125, 1992 Honda CB400 Super Four, Stomp T4 230, 1984 Honda H100s, 2009 Sym XS125K
Past:2003 Aprilia RS125, 1982 Kawasaki GPZ550(FREE BIKE!)
I'm having more fun than a well-oiled midget.

[G]

There is one club that runs the pit bikes on a 'proper' supermoto track.

But so far my experience is that it's closer to normal track-riding scaled down than actual SM.

Ok, I haven't actually ridden an SM on track properly, but have owned a few and ridden them off road too.

Would like to give full-size SM racing a go too, but pit bikes are cheaper generally.

[STONEY!]

What bike/suspension setup are you running And how do you rate it? That goes for anyone with an Sm pit lol

[G]

On the main one I've ridden - SP forks, DNM shock with 1000lb spring.
Soft. Needs 1200lb spring, it seems.
Brakes a bit soft too, but passable.

[Fladdem]

I have no idea! It seems quite good though. The brakes seem quite good too. I took it for a quick spin round the block, stoppied from about 10-15mph, never had a bike do that before. I'm getting it ready for MOT, it wad pouring fuel out the overflow, my guess was gummed up float, seeing as the fuel was stale four months ago when it was last started I think I was right, a qquick clean and a splash of fresh stuff donated by my CRM sorted it. I must remember to fill the Jerry can on the way home tommorow

From what my mate told me, he spent over 1600 on the bike on bits. From what I can gather that's a fortune in the pit bike world, it seems like a lot on a bike he just used to mess about on.
____________________
Current:1991 Honda MT50 (Soon to be a H100/MTX/MT5 hybrid), 1976 Honda Cub C70, 2005 Honda Varadero 125, 1993 Yamaha TTR250 Open Enduro , 2010 Road Legal Stomp YX140, 1994 Honda CRM 250 MK III, 1999 Cagiva Mito 125, 1992 Honda CB400 Super Four, Stomp T4 230, 1984 Honda H100s, 2009 Sym XS125K
Past:2003 Aprilia RS125, 1982 Kawasaki GPZ550(FREE BIKE!)
I'm having more fun than a well-oiled midget.

[Fladdem]

The pitter failed it's MOT today. No baffle in the exhaust pipe, excessive play in the headset bearings and the number plate is facing too high.

On the plus side, I sorted out the leaking carb last night when I gave it a quick once over to get it ready, but I tweaked the float height too much, so at constant revs it feels like it's being starved of fuel. I enjoyed riding it the 15 miles to the test centre, despite the rain. I managed to get a slide on at one point slamming it from 4th to 2nd, and the tiny wheels didn't take too long to get used to. It just feels like a powerful moped to ride.

I was impressed how it just flew up the gearbox, I'm not sure what it's top speed is, I'd guess about 65-70, I overtook a van down a massive straight! The vibrations are just like the cubs, you can tell the engine is based on the cub, it even sounds the same, not exhaust tone, but engine noise. I think I will turn it into a track toy!
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Current:1991 Honda MT50 (Soon to be a H100/MTX/MT5 hybrid), 1976 Honda Cub C70, 2005 Honda Varadero 125, 1993 Yamaha TTR250 Open Enduro , 2010 Road Legal Stomp YX140, 1994 Honda CRM 250 MK III, 1999 Cagiva Mito 125, 1992 Honda CB400 Super Four, Stomp T4 230, 1984 Honda H100s, 2009 Sym XS125K
Past:2003 Aprilia RS125, 1982 Kawasaki GPZ550(FREE BIKE!)
I'm having more fun than a well-oiled midget.

[The vet]

Here you go. Norasport run the pit bikes "proper sm"
https://m.youtube.com/watch?v=QEPnENhR5pE

[The vet]

https://m.youtube.com/watch?v=zF4F1ebKyZo&feature=youtu.be

I'll start this seasons on board footage with my bike being ridden to 3rd in the junior gearbox class only her second ever pitbike race , footage from 2nd place rider

[The vet]

https://m.youtube.com/watch?v=Qp6qZNpELNs&feature=youtu.be

Round 1 on board action stock 140 A group

[The vet]

https://m.youtube.com/watch?feature=youtu.be&v=M5vmlH_fx54

Something different a little crash vid from rd1

[The vet]

https://m.youtube.com/watch?v=4dZCvBrFa5c

Round 2 Teesside / veterans class ( that's for the over 40's )

[The vet]

https://m.youtube.com/watch?feature=youtu.be&v=HjP54GhJUqU

Round 3 from rednal