44t v 36t sprocket

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Xiodinc

Xiodinc

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Oct 15, 2009
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What are the advantages/disadvantages to each?

I have both sprockets and wondering which i should put on my bike.

I live in a relatively flat area, but there is one pretty big hill i take to get to my friends house once a week or so.

Other than that hill, The only other big hills i have are overpasses.

Which should i use?
 
The_Aleman

The_Aleman

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Jul 31, 2008
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Use what you need.

The 44 has better hill-climbing, but less top speed and a lower safe (<6K RPM) cruising speed.. The 36 has more top speed and less hill-climbing, higher safe cruising speed.
 
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retromike3

retromike3

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Jan 9, 2009
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Beaverton OR
I have a 36 tooth sprocket myself but I also have a SBP tuned pipe. It will go up some pretty steep hills but I think you will have to "help it" up the steep ones. Its a good idea to have some gears on the pedal part of your bike so you can assist it. These bikes are technically Motor Assisted Bicycles not motorcycles. I was talking to another bicycle rider today and he referred to my bike as a hybrid. I think that is a good description.

Quite a few times I turn the engine off and just pedal it around.(like when I am in a parking lot or close to the university.)

mike
 
M

Mozenrath

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Jan 13, 2011
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44 tooth works great for me. I usually get into the high 30s speed wise, and I get plenty of hill-climbing power. I do live in a hilly area though. If I lived on all flats I'd definitely switch to a 36 sprocket.

Someday I want to try out a 36 and possibly have both the 36 and the 44 sprocket mounted depending on where I think I'll be riding.
 
Nashville Kat

Nashville Kat

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Apr 20, 2009
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Jacksonville, Florida
Switched to a 36- loved it. Less revs and motor screaming, vibrating constantly
I climbed a reallly steep over a mile long hill and only bogged down a bit finally near rthe top-

just got a 34- putting that on now here in flat Florida-
 
Xiodinc

Xiodinc

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Oct 15, 2009
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Alright, i Think I'll go for the 36. For the hill, ill just help it a bit... What do you guys suggest for tuned pipes? i was looking at the sbp pipe, and was wondering what kind of increase you guys got out of it.
 
retromike3

retromike3

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I have a SBP tuned pipe and it made a huge difference in the power output. I "feel " like the power has doubled. One of the drawback is that there is a huge peek in the power curve. It almost feels like a light switch was turned on or off. I also had some problems with the tubing used to seal the pipe, so I acutely welded most of the pipe together replacing the brass tubing with steel bits. The reason for that was that the brass tubing stated to melt.

I don't know if I set it up wrong in the first place but after that I have had no further problems with it. I know that I had to tune the pipe to get it to rev right were I need it.

mike
 
V

vincent713

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Jun 2, 2010
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Dallas
The_Aleman said:
Use what you need.

The 44 has better hill-climbing, but less top speed and a lower safe (<6K RPM) cruising speed.. The 36 has more top speed and less hill-climbing, higher safe cruising speed.

It's not rocket science.
Click to expand...
What do you mean by higher or lower safe cruising speed?
 
The_Aleman

The_Aleman

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Jul 31, 2008
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I mean higher or lower safe cruising speed for the motor.

Overrevving a chinagirl is arguably the quickest way to kill it. Let's use 6000RPM as an example to call "redline".

With a 44T and 26" wheel, you'd be going about 26MPH @ 6000RPM.
With a 36T and 26" wheel, you'd be going about 32MPH @ 6000RPM.

If your typical cruising speed is 25MPH, the engine is turning at a "safer" RPM with the 36T. You'd be turning just under 5000RPM at 25MPH with a 36T.

If your cruising speed is dictated by the RPM of your motor (some start shaking/vibrating earlier than others), you'd have a higher "safe" cruising speed with a smaller sprocket.

vincent713 said:
What do you mean by higher or lower safe cruising speed?
Click to expand...
 
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andrewflores17

andrewflores17

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Jul 12, 2010
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36 tooth was always my fave did take a little longer to get started you have to pedal up to a higher top speed but as long as you have a good run at it shouldnt be a problem i never had one threw it a little pedal help here in there but for the speed increase i got and the little loss in hill it was worth it a 100 and ten percent
laff
 
Saddletramp1200

Saddletramp1200

Custom MB Buiilder
May 7, 2008
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Houston, Texas
Ok Guys, here is one for you. We have the best minds from over the world here. Why can't we make a derailuer that would allow 44 AND 36 tooth sprockets? 18 speeds have them. Why not us? A lever on the frame to change it. Think about it. (c)
 
V

vincent713

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Jun 2, 2010
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Dallas
I see what you're saying, I'm not sure which sprocket I have but I would prefer a 36t simply for the lower end power and hill climbing. Doing 28mph is fast enough for me.
 
Texhun

Texhun

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Aug 2, 2011
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Rosebud Texas
With a 44T I could hit 32MPH easy. With a 36T I can hit 38MPH easy. I'll try to graph the all around power for you. Torque 1-10, I'd say the 44T is around 8, the 36T about 6. Hillclimbing, 44T also 8, the 36T 5. Top speed, 44T 7, 36T 9. Cruising speeds on 26er's, 44T 24-26MPH, 36T 29-32MPH. Final thoughts. I loved the torque the 44T had but here where it's mostly flats the 36T is the best for my bike. I can cruise at lower RPMs at higher speeds, and with a Xchamber the powerband on a 36T starts around 28MPH whereas a 44T will star around 23MPH or so. overall I love the 36T and I'm sticking with it. Hope this is clearer than mud.
 
retromike3

retromike3

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Jan 9, 2009
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Beaverton OR
reason for signal rear cog.

the main problem I see for a two speed cog in the back is the fact that you need (at least in my bike) to "BUMP START" the bike and that requires a tight chain. It would be very hard to get your drive chain over to another cog and have it start your motor at the same time. If my chain gets a little loose it will jam up in the housing of the engine and then you day is not off to a good start.

mike
 
Fulltimer

Fulltimer

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Retromike3: I love that statement of yours: "If my chain gets a little loose it will jam up in the housing of the engine and then you day is not off to a good start."

In other words it will just be $hitty day!

Terry
 
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