On the C5, I think the 18" wheels were a mistake, and they need to return that to 19" wheels, or at least a 19" wheel on the front.It was common back in the old days to use a 19" front and 18" rear.My Ducati 750 bevelhead twins had 19" front and 18" rear, and had a leading-axle fork too, and it handled like it was on rails.There are enough comments about the C5 feeling "light and twitchy" at higher speeds that the added rotational stability of a 19" wheel would make sense, too.And the 19" front wheel looks very good on that modified C5 that ScooterBob did.
I have an AVL Electra 2009. Will it help to put 19inch wheel no teh front. How about the gear sprocket.
I like the idea of a 18" rear and 19" front, that will allow me to run tires I'm familliar with. A lot of the bikes I've had were set up that way. I'm positive a 19" front will get rid of most if not all ot the light twitchyness.
Well, I'm home alone so I propped the bike up straight and measured down the fork leg with a yard stick, I had to use a level for a plumb bob but that should work shouldn't it? I measured 3 times and came up with a measurement of 4 5/8" when I have help I'll try again.
I took one look at the C5 and forgot there were any other motorcycles, I bought it and I've been delighted with it ever since. Ace is right about the wheels, I will be going to a 19" front soon.
could somebody who has done the swap define easy ?My take is it will needA complete new rim, spokes, hub, rotor, mudgurad.Because you cant use the 18" hub with a 19" rim the number of spokes are different.
Sounds like a lot of you don't like the new C5. For me it is a thing of beauty, but then I like the retro look. Besides the Kick start, why is it that the C5 is not well received
Nearly every single UCE owner I know dumps the kick starter.I did. It saves you over 1 KG in dead weight.Id give anything to swap out the side cover for one without a kicker hole.
The only reason to put a kicker on these is so you can look cool kickstarting them.
You're forgetting everything about acceleration and gearing.A smaller sprocket will allow you to go at a higher speed at lower revs, but the engine will have to work just as hard or harder. Acceleration will decrease based on engine power.Try accelerating a bicycle to 25mph using your leg power (a fixed amount of HP and Torque) going through the gears sequentially. Now try to accelerate to 25mph using only gears 2, 4, and 6. Your acceleration (rate of increasing speed) will be slower due to the limitation of your biological hp and torque (power) factor.In an engine with infinite power, yes a smaller sprocket will increase acceleration. When you hit a fixed wall in the total equation, something is compromised.If what you said was absolutely true, we all would be running 6 tooth front sprockets and 6 tooth rear sprockets, because it would be faster, instead of 18t front and 45t rear. We need the gearing to compensate for power losses, both at certain RPMs and totally as a whole on the peak ranges. As you said, you're not a gear-head.
I recently had a guy come up to me as I was getting ready to fire up my bike. He said "Dude, you should get a 3 speed transmission - they're fast!" I started to explain that gearing determines what rpm you'll be at for a given speed, but can't change your speed unless you're geared badly to begin with. You need more power and/or less drag to go faster He responded by starting to lecture me about his friend with a 3 speed whose bike was now "wicked fast" and that "torque is where speed comes from." He said my 5 speed was adequate, but a 3 speed would make it scream. I put on my goggles as he kept talking, said "nice to meet you", and rode away. It seemed like a conversation that was going to go nowhere... Eamon
I get the sarcasm in your story. I must also agree I am a newbie. And, If you read carefully, I am not talking of doing 100 mph on the bike, just 65, but with a lower stress on the engine, with a 20 inch sprocket. The overdrive gear was just a theoretical question.
65 mph will put a big smile on my face. I have put a short exhaust. A 30 mm carb, 20 tooth sprocket and a more open air filter (undetermined yet) are next on the list. In theroy: The Electra can go to 65 mph easily, just not recommended for cruising at the speed because of the added stress on the engine. However, with a larger gear ratio, same (not more) speed can be achieved with less stress on the engine. Thats why they have these larger sprockets to begin with.
The best way to increase cruising speed, or reduce the stress on the engine at the cruising speeds is to reduce the load the bike must overcome to maintain that speed.And that is done by improving aerodynamics, to reduce wind drag, which is the largest factor of load that the engine must use its power to overcome at those kinds of road speeds.If you do that, then you truly do have less load, and can then use a taller gear without increasing the stress of the engine, because there's less load to overcome, and the bike can accomplish that at a lower engine rpm more easily, thus you don't need to increase the throttle opening any bigger, and you can use that taller gear to get lower rpms at the same throttle opening as before or maybe even less, because you've cut the load by improving your aerodynamics.
Perhaps one of our resident math wizards can prove or disprove this old time wives tale,,"Every seven pounds you shave of the bike and rider combo is equal to a one HP increase."
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