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sectionone

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Everything posted by sectionone
 
 
  1. It could be the electric equivalent to Tenaci Wong. Are those still being sold? Budget trials bikes never seemed to sell well but at this low price it could. It has torque similar to EM. Arctic Leopard has an enduro model that looks good and lower spec to Stark Varg and should be a good seller to keep them in business.
  2. There are 2024 bikes at half the price of EM EPure. No clutch but titanium frame option. Base model is only $100 more than the new Oset 24. https://arctic-leopard-usa.com/trial/
  3. There are several electric dirt bike brands using a 4 speed pit bike gearbox and the general consensus is it doesn't need that many gears and the ideal would be 2 gears with the highest a road gear to save battery while going fast. Since you don't need to shift while in section, the low hanging shift lever should be moved up and away from rocks. No use for neutral but reverse would be nice by switching polarity with a handlebar switch. Mecatechno doesn't have a flywheel and some high level riding is done with it. I'd like to see an e-trials bike with a clutch and two gears at half the price of the current ones.
  4. It's a good idea to replace the shaft also.
  5. sectionone

    Clutch ??

    My 2007 Sherco 250 does the same thing when it has hasn't been ridden in days or weeks. Seems to be a European trials bike problem for bikes without diaphragm clutches. Japanese bikes with basket clutches don't have this problem. My old Fantics had sticky clutches.
  6. Clutch control is one of the best things to use a trials bike to master. I have found the belleville spring gas gas clutch problematic to adjust. I like a grabby clutch to get rear wheel lift and the gas gas clutch gets softer over time even though plates are in spec. You have to adjust it with different thickness steel plates and/or the Xiu ring. https://www.xiu-rdi.eu/comprar/40/soporte-de-muelle-ajustable.html
  7. Another thing to watch out for is where the airbox boot goes on the carb. Mine had an inner sleeve that can come off and suck in unfiltered air. Also crashing on the seat/airbox can pull the boot off. Here is the fix. https://www.vmar.com/carb.html If the skidplate is flattened and the rubber cushioning is deteriorated you can get metal to metal contact and crack your cases. The silencer rubbing the tire is common with no easy fix.
  8. One thing about the gas gas pro engine is the main bearings are lubed by the transmission oil and if you hear any unusual noise, stop riding immediately. I sold my gas gas to a friend and a month later he kept riding it after a noise started and trashed the main bearing and other gears. The other oddity is getting six gears out of four. The patent has expired and no one else is using it for good reason.
  9. I found the thread where a 250 2T enduro rider bought a 2007 Sherco 250 which is the same bike I ride. He ended up milling the head for more power while I find the power fine and about the same as the GG 250 I had. https://www.advrider.com/f/threads/2007-sherco-250-what-compression-ratio.1629759/page-2 The KTM 300 is popular for hard enduro because you can lug it and a 300 Trials bike can be lugged even more so it is a good cross training tool. A 125 2T won't lug much. For high level trials the 125 is considered a stepping stone to the big leagues where you rev to the moon and dump the clutch.
  10. 300 is by far the most popular size in the US with the best resale value. Riders below expert class will add a flywheel weight and low comp head. I think there is a thread on ADV rider where a KTM 300 enduro rider bought a 300 trials bike and was complaining it had no power and was doing crazy porting mods. All trials bikes don't have much high end power compared to enduro. If you are coming from a Japanese enduro bike, you can't start or shift an older gas gas pro engine the same way or else you will break it. Single deliberate kicks and gentle shifts are required.
  11. Every hard enduro rider I know who rides SEER and TKO and owns a trials bike for cross training has a 300 and doesn't compete in trials. They might try STRA Intermediate class and find it boring and not interested in tight technical turning and more into Expert level steps, big climbs and not concerned about dabbing. Virtually all the STRA riders are not interested in hard enduro. Trials dealers are very honest and trustworthy so you could get one shipped to you without a problem. They would even take in a bike from a private seller, make sure it is mechanically sound, then ship it to you at a good price.
  12. Early gasgas pro bikes are problematic and you will spend a lot of time an money keeping it running. I bought a low hour 2007 250 in 2007 and had to split the cases to replace shift shaft, replace the ignition and replace idler and kickstart gears. A friends 2013 gasgas had to have the cases split twice for gears and seals failing. I owned my gasgas for 12 years and was glad to get rid of it. Very unreliable gearbox and ignition. I spent a lot of money replacing Ducati parts and had to replace it with Kokusan. Don't buy a gasgas with a Ducati ignition, it will leave you stranded! My 2007 Sherco 250 has been very reliable with plenty of manageable power. I would get bored easily with a 125 trials bike. A 250 and up makes hillclimbs fun but if you don't have big hills a 125 would be fine. The most reliable are Montesa 2 or 4 stroke. My 2005 4RT has been flawless. A late model 300cc 4RT can be one of the loudest bikes when revved up. Mine is quiet at low rpms and not so bad at higher rpms.
  13. I made my 4RT "street legal" with a bicycle battery powered headlight, Tusk dual sport kit, and plate from my XL250. I ride on the street for a few miles to my trials riding areas and pop the seat off.
  14. I would have just had the broken tabs welded.
  15. How tall are you? I am 5'4" and can cold start my 4RT very easily but when it is hot I need to stand on the pegs and give a firm kick. When it's cold, just a lazy push down on the lever but when hot, lean bars against a tree, stand on the pegs and give a forceful kick but not fast.
  16. Here's an article about EM in the Nationals. It is basically a paid advertisement by EM and makes no mention of the DNF in the first round he rode. He is quoted with the plural "batteries" with plenty of power for a loop. In social media he stated one battery caused the DNF and better results using more than one battery. It was a prime opportunity to tout almost getting on the podium using one battery but they didn't. https://www.on-the-pegs.com/on-the-pegs-august-2021-on-the-pegs-volume-6-issue-8-august/0599729001627386745?fbclid=IwAR00BczJTEz6lTwWUMHGMo0jO-X5SGERGADj2BRTRuDMLZmytaKJUdSSMdo
  17. I guess it depends on rider skill level and difficulty level also. The rider who rode the Nationals had won the High School and Expert class championships previously and was riding the Pro class before switching his attention to hard enduro. He is sponsored by the importer and was riding the top of the line bike. It seems in a tough muddy trial with lots of clutch slipping, 7 hours is not enough for one battery.
  18. I have an Oset 24 and found that there is a difference between run time and full performance run time. Mine has 3 red LED battery level indicators and an orange low level light. When all three reds are on all the time, I get full performance. When the top light starts flashing off under load, performance drops especially when going up a bank with a rock on top. I won't get the same quick throttle to get the front end up. I can get a lot of riding time until the orange light flashes but not as much full performance time. There is a sponsored EM rider who rode 3 rounds of the USA Nationals in the Expert class this year and he found he couldn't complete the trial without a battery swap with a DNF on his first try. Probably one battery was enough but not at the same performance level all day.
  19. Here is my cooling system with meat thermometer to keep an eye on temp. If I ever replace the brushes I will make some vents in the motor housing a run a tube up the frame with a fan to pull the heat out. There is a wire that can be cut to disable heat sensor but Oset told me it was only for diagnostic purposes for the early 24R and it should stay connected or the motor could melt. The Oset clutch is similar to the earlier Electric Motion electronic clutch. Not necessary for an Oset but I'd like it on my eMTB. I've been riding it at skateparks and I can't use moto technique going up over bowl walls by throttling when the rear wheel compresses at the bottom. I have a throttle on it but it has a big delay. With a clutch I could time it right and accelerate over the top then cut off power.
  20. Brushed motors run hotter than brushless? When I trail ride my Oset 24 the motor overheats and goes into limp mode after 20 minutes with the dials all the way to the right. My 2000 watt electric mountain bike never has an overheating problem. This guy sells an electronic Oset clutch and I'd like to try something like it on my emtb that has a throttle. https://sites.google.com/pretoriaengineering.com/osetclutch
  21. My biggest complaint about my Oset brushed motor is how hard it is to back the bike out of my garage! The instant throttle response is worth the trouble and my ebike has a long lag and the surron lightbee I tried also has an annoying lag. The solution would be a brushless motor with a clutch.
  22. I use them on my pit bikes and they work good.
  23. To ride comfortably sitting I like the seat to be the same height as the gas cap. This one that I made is easily removeable after I'm done trail riding and the mounting bracket always stays on. I've since added a knob screw to mount the front down and the back is held by the hook and velcro. I cut the seat from firm foam and coated with Herculiner.
  24. It doesn't look like Ducati which is a silver finned box with Ducati written on it. They are known to go bad and the common replacement is a Kokusan ignition which is used on most gas gas of that era so maybe that is what you have.
  25. I bought an Oset 24 17 inch rear wheel with a Vee tubeless tire that came with a rimlock and tube and it works fine except I wish the rubber was as soft as a Dunlop D803
 
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