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Posted by chktm | Jan 04, 2016 @ 06:24 PM | 1,791 Views
Made the trip out to Biloela an hour away for my first practice on their track that's been open for a while now I just haven't been able to make it until now. I enjoyed the track and had a fun morning.
First practice at Biloela track (2 min 42 sec)

Posted by chktm | Dec 22, 2015 @ 05:16 AM | 2,562 Views
A couple of recent vids from the first practice at the track with the YZ, loving this bike, so much fun and so nice to ride.
YZ track jump (0 min 24 sec)

YZ 2 stroke on board gladstone track (2 min 56 sec)
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Posted by chktm | Dec 10, 2015 @ 01:00 AM | 1,966 Views
Here's a little run down on my BZ and my story. It's been 8 years since I retired from 1/8th nitro buggy racing and being a little bored and with advent of brushless and lipo technology after seeing and driving my friends BZ decided to buy one to take to the local tracks to have some cheap fun club racing. Having previously raced electric 1/10th back in the 90s I was also interested to see how things had changed. My local tracks are usually a little slippery and bumpy so I initially went with 30wt Losi oil all round in the shocks, this worked quite well getting grip and handling the bumps but I felt I couldn't push the car hard when needed. Since switching to 35wt for the last few meets it has been a good compromise between stability, grip and bump handling ability. I'm running 15mm preload on the std front springs with a little droop reduced and 10mm preload on the rears. The track has been getting more unpredictable lately with blown out jump faces and other sections and the buggy has been ploughing on relentlessly. I went with 5k 7k and 3k diff oils front to rear and re shimmed them to remove binding and greased the main gears with a lithium grease. I didn't strip the whole car down but went over all the screws ( some screw heads can be miss formed ) and tightened any that needed it. I'd heard the body can be fragile and crack so to prevent any dramas I used some transparent duct tape on the inside which works brilliantly at helping keep lexan together, my friend...Continue Reading
Posted by chktm | Nov 21, 2015 @ 05:34 PM | 2,703 Views
Added another bike to the collection the other day, just gotta get a nice FMF pipe for it now.
Posted by chktm | Aug 27, 2015 @ 12:24 AM | 2,114 Views
Here's a few more videos of a few different things I enjoy from the mx bike to the little bikes and also some Scorpion buggy video.
New jumps practice lap at Gladstone MX track (2 min 28 sec)

RC4 RCMX fun at Rocky RC track (5 min 58 sec)
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Posted by chktm | Feb 22, 2015 @ 04:17 AM | 4,308 Views
My RC4 bike knows it's way around the track, a few recent vids of this bike in action.
Ricky Carmichael close up track action (3 min 55 sec)

RC4 RCMX clean track run (6 min 36 sec)
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Posted by chktm | Feb 20, 2015 @ 06:08 AM | 4,819 Views
A few recent videos of the Scorpion on the track.
Kyosho Scorpion 2014 track action (6 min 9 sec)

Kyosho Scorpion 2014 jumps with a 9.5t (2 min 23 sec)
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Posted by chktm | Feb 20, 2015 @ 05:57 AM | 4,661 Views
A few pics of my new Scorpion.
Posted by chktm | Dec 22, 2014 @ 06:44 PM | 3,458 Views
Just a little test video as I've been having dramas doing video and uploading. This has as issue I see in the slow mo at the start, no it's not an effect but it is kind of cool.
KTM No 5 shortened track fun (1 min 30 sec)

Posted by chktm | Dec 07, 2014 @ 05:41 PM | 3,070 Views
My first foray into RC cars was when I was 12 and it was the Kyosho Scorpion. Recently I'd seen Kyosho had re released this buggy. My interest grew and I had to get one for nostalgic reasons and because I think they look very nice. Here's a few pics and a little vid of the first run with the buggy. No bigger double jumped yet, I still haven't got the correct motor I wanted for it yet.
New Kyosho 2014 Scorpion first run (3 min 59 sec)
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Posted by chktm | Aug 11, 2014 @ 06:38 PM | 4,129 Views
After fitting the foam insert that came with the front baja tyres I felt it was a touch soft in general. It held up for about 15 runs on my brutal track ( a std Atomik one lasts approximately half that ) before it was almost cut up. I've made up an insert out of the harder ones that came with the rear baja tyres. It is quite firm so we will see how it goes. I did have an issue with the tyre going out of balance quite badly due to pulling the inside edge of the bead in a couple of places due to it not seating correctly I think. The outer bead stayed in place but the tyre got noticeably wobbly and the sidewall seemed taller in spots. While installing this next insert I ended up fitting the tyre as I had done with the knobby, by fitting the tyre onto the rim with the screws only a few threads in and then pulling the bead out all round the tyre and refitting it rear most edge under the ring then pushing it down to seat the outer section. Doing each segment of bead at a time. This was quite easy to do as its a better fit compared to the knobby tyre and stayed in place while tightening the screws. I had a go of the bike on the driveway and it drifted brilliantly and threw massive roost. Even on the grass it had plenty of grip, maybe even more than the knobby tyre. I made up another fender saver for the RC4 bike also.
Posted by chktm | Aug 08, 2014 @ 10:16 PM | 4,625 Views
I've seen this used on road bikes and it has been discussed before. I've been meaning to do something for quite a while and finally got around to doing it. I have been using no wheelie bar or wire for about six months and found I liked the handling better than the RC4 bike with the wire wheelie bar. I always felt the less weight you could have swinging off the rear of the bike the better and the steel one waggles around making things worse. Also one day I might get back and do some racing against the SC trucks and this should reduce any chance of a wheelie bar being bent into the rear wheel in a crash. This has some give but is very strong and has good memory to rebound into place vs steel. Its 8mm nylon.
Posted by chktm | Aug 08, 2014 @ 07:09 AM | 4,158 Views
Thoughts on tyres

Just a few things worth mentioning about making these tyres. The knobby rears did rub on the chain initially until it rubbed them down. I thought maybe next time I'd make it a little thinner but its already fairly low profile and this would only make it lower. I think the knobs it knocks off are more so on the side of the tyre so its not a big issue. These knobby tyres work well on grass and probably loamy or moist dirt, they also work well on dry hard packed but on that surface lifespan will be short. It seems the tyres made from the front ribs are more suited to dry hard and rough surfaces as they will last longer I think and also have a taller profile which should work better through bumps. They do seem a slightly softer compound also meaning a little more grip on the slick dry stuff. The handling is a little different to the stock tyres, not worse, just different. The bike corners well at low to mid speeds but doesn't want to turn as well at high speed under power I found. I didn't find this to be an issue at all, it was just something I noticed. It did seem to right itself and straighten up quicker under throttle also. The main thing is this gives MM owners a viable option for a few choices of rear tyre, awesome. Here's a few pics of the knobby tyre and the insert I used in the ribbed tyre and how it started out and a little vid of the knobby tyre on the grass.
RC4 replica RCMX golf course bash pt1 (6 min 5 sec)

RC4 replica rear baja tyre quick test (3 min 46 sec)