lemur

Because there is only 2 bearings and they are carrying a wheel that is 27 something inches in diameter. Small amount of play in the axle bearing results in large amount of movement in the wheel. You can push thin oil into a wheel bearing with an insulin syringe and displace the water, might be wise after your next deep water crossing, makes them last longer.

So you figure a 4$ roller bearing with only 7 balls and zero claim to tolerance is as good as the one with 9 balls, costs 4 times the price and meets a high tolerance spec 🤔 interesting. Yes you need to keep the water out of any roller bearing, that is what the grease and oil does, it displaces the water. ... if it was for the track idler wheel on a 1968 snowmobile I would agree with you.

You are going to find bearings have a precision rating, low numbers are low quality, higher number ABEC rating cost more. Same tool is good for pressing in the new bearing, use an old bearing to push the new one in, works slick.

SKF from a local being supply 6 or 8 at a time. You can buy different specs, expensive bearings have more balls and tighter specs. ... made up a puller to change them super easy, the steel sleeve to extract the bearing spacer is cut from a used CO2 canister.

If you grab the tire by the front and rear and give it a sturdy wiggle rotating action about the vertical axis and can observe any change in the chain slack, that is a clear indication the wheel bearings need replacement or the swingarm bearing needs attention. Bad bearings also contribute to reduced braking. I end up replacing wheel bearings more then chains and that is buying the higher quality bearings ymmv.

If the chain tensioner is doing something when the bike is at rest with no rider aboard you are good to go, if the rubber block is touching the swingarm at rest that's not good. ... so far this year alone I spotted 3 bikes with the axle set crooked and I noticed it because the chain tensioner was doing nothing when they parked their bikes. Make sure the axle is good and tight and that your wheel bearings are perfect, wheel bearings wear out fast.

😄 I think he is talking about the rider with both feet down and picking the bike up by the handlebars 🤔 looks like me except I can't pick a bike up by the handlebars.

Wait 🤔 you lined an aluminum fuel tank because it was rusting?

CV carburetors operate off intake vacuum pressure that is literally robbed from the engines intake stroke. Key to making a Beta 4T respond as well as a Montesa 4RT would be to install PGM-Fi instead of a carburetor and the vacuum operated fuel tap. PGM-Fi self adjusts to any altitude and air temperature changes and the engine intake vacuum pressure is 100% dedicated to engine performance, by comparison carburetors basically suck.

This right here is why I no longer want to check at an important trials event, far too much ambiguity around the rules and the rules keep changing to advantage the entertainment of the near non-existent observers. The solution to the problem is in the building of the section, you can build a section that is suited to a no-stop ride and you can keep the perimeter tape far enough back from the ride line so that it never becomes a problem of somebody wanting or needing to cross it, you can lay out a section short enough to easy be ridden in an allocated time, or you can make a section so long that nobody can complete it in time.

Montesa 👍 Viva! "Meets current EPA standardsModels sold in California meet current CARB standards and may differ slightly due to emissions equipment"

If a trials bike is going to need to be emission spec where you ride I think you are looking at a Montesa or something electric.

I think you need to maintain that it is not intended to pass EPA road specs any more than a new chainsaw or lawnmower would pass road vehicle EPA rules.

Tires are stamped 'for off road use only'. There must be a way to import it or your feds would never be able to collect the outrageous tariff that is unique to your country.

Is that how you did it

I bet when you push the brake pucks back into the calliper fluid will now go back up into the reservoir, if you did that first it might have cleared the hole.

When you remove the brake master reservoir cap and force the disc pads full width apart did that not force fluid back into the reservoir? If not then you found a problem.

Not considering population density, 287 people per square kilometre in UK vs 38 per in USA and only 4 people per square kilometre in Canada. UK has 7.5 times the population density of USA and 71 times the population density of Canada. UK has exponentially fewer places to ride, not much relative distance to get to anything and a lot more trials riders. I seen a Jotagas once.

If only classic TY had teflon coated bushings in the lower legs to replace, but sadly they do not.

Triple trees limit your options to run larger stanchion tubes, the stock steering head bearing is the weak part. Steering head bearing upgrade to taper bearing is relatively inexpensive and gives you the most bang for your buck. ... if you could devise a way to run a fatter axle and larger bearings that would go a long way to stiffening the front end, it's not hard to twist TY175 forks. Super important to replace the stock wheel bearings frequently to maintain suspension and brake performance.

Simple answer is yes, stators can be rewound, very often by a local business that specializes in repairs to stators and starter motors.

4RT engine is the kind of engine you could run pinned for a long ride and not blow it up. They run a 36 tooth rear sprocket to make one more street worthy. 36 tooth sprocket will limit your Trials riding to mostly 1st. and 2nd. gear.

Huge difference between the frames and sub-frame on those 2 models, 315 does not even have a subframe, fragile does depend on how hard you ride them and how often you crash it. Personally at this point I would not buy any trials bike that does not have a 4 pot front brake. Both are 2-stroke and would be horrible for the 20 km of on road ride in addition to a full day of trials terrain riding. Pre-mix fuel is going to be a problem for street riding distances greater than the normal 2 litre trials bike fuel capacity will provide. A 2-stroke air cooled engine will not have the fuel range or engine longevity you will get with a 4RT. Air cooled 2-stroke is going to smoke and rattle even more compared to a water cooled engine and adding oil to fuel reduces fuel octane making race fuel more relevant. Fat bars on newer models are less prone to bending compared to 7/8" bars with a crossbar support. KTM 2T enduro bikes have cheaper buy in and replacement parts on average, but they break lots of pegs, rads, exhaust pipes and plastics.

The bike will be more prone to jerky throttle response in 1st gear, same reason you shift up a range on wet slippery muddy terrain, higher gear range with more clutch control will apply power to the rear wheel more smoothly and with greater range. and I suspect it is only a 125 and not 225 so there is not much power range to begin with so good clutch and throttle control is imperative.

4RT is the kind of engine you could pin for a while and not have a problem, very capable ride and user friendly as trials bikes come, carry a tire pump and pump up the tires lots for road use, let tire pressure down when you get to the riding area. You can get a saddle that can carry extra fuel storage. With a 4-stroke you won't be trailing a smoke screen on the road rides. Some of those motorcycles you are considering a fairly fragile considering trials bikes and hard enduro bikes are constant repairs and maintenance.