[gtdohc]

been watching this forum for quite a while, finally got my 2010 G5 deluxe with only 750 miles, just love this bike, however have some questions regarding the gearing,  the bike comes with stock non o-ring chain, bike currently have k&N air filter and aftermarket muffler and probably will add the power commander later on. my questions are if i changed the front sprocket to 19t, what size of the chain (x-ring) should i install (530- 102)? it seems like the right side engine cover has to completely come off to do this job? any input is much appreciated.

[TWinOKC]

Are you sure you want a 19 tooth?  I think they come with a 17 tooth?  You want an 18 tooth?

Anyway this video will get you started.

http://www.youtube.com/watch?v=gNK9tfJ1_xc

[gremlin]

IIRC  G5 comes with 19 inch wheels, so, yes......  he would up 1 to 19 teeth.

[Arizoni]

I have a G5 Deluxe which has the 19 inch wheels.

My countershaft sprocket that drives the rear chain has 17 teeth.

To go up in size 1 tooth he would need a 18 tooth sprocket.

With my 17 tooth sprocket, the bike originally came with a 101 link 530 chain.
If the drive sprocket is bumped up to a 18 tooth sprocket a 102 link chain should work.

Actually, a 102 link chain works with my 17 tooth drive sprocket too but the adjusting snails are turned to the point that there are only 4 adjustment notches left for further adjustment.

I don't know if gtdohc knows this but I'll mention that changing the rear wheel drive sprocket won't get him any increases in speed.

It will slow down his bikes acceleration and the engine will be running at a slower speed at any speed.
This can make high speed (70-80 mph) riding sound a bit more relaxed as far as the engine goes.

Oh.  The reason putting a larger drive sprocket on the transmissions output shaft won't increase the top speed is the 27.2 horsepower has pooped out at 80 mph.  There's nothing left torque wise to improve the top speed.

[Ragmas]

My 2009 G5 came with a 18t sprocket and a 101.5 link non o-ring chain.  Followed Singhg5's instructions and installed a 19t sprocket and a 102 link chain.  The hardest part was finding a 46mm socket.  I suggest getting a new gasket or making one, I had problems using silicone and plugging oil lines that should not have been. 

Samgar

[singhg5]

G5 comes with 17 Tooth sprocket as shown in the video. 

One tooth higher is 18 Tooth sprocket for G5. 

(NOTE - Do not confuse with C5, which is different)

Here is the picture of original sprocket in the G5.

[gtdohc]

Not sure the original front sprocket is 17 or 18, i might be wrong to going up 2 teeth if original is 17, since this is the only bike i have with single cylinder, not actually like to chasing the higher top speed but instead just want to reduce a bit less engine speed to keep that vibration lower, should i use the 530-102 x-ring chain if changed to 18t?

[barenekd]

The G5 and B5, the 19" wheel bikes, come with a 17T sprocket. trhe C5 with the 18" wheel comes with an 18T sprocket. The reason to change to an 18T sprocket is to allow the use of the wider Oring chains. An Oring chain will hit the bearing boss on the shaft with a 17T sprocket. A 102 link chain will work with the 18T sprocket, but will be a bit long so you can run out of adjustment. A 101 will work fine if you can find a 1/2 link for the chain you're installing. They are hard to find! If you're not interested in going to an Oring chain, you can get much better quality non-Oring chains and retain the 17T sprocket. You do need to get rid of the stocker. That thing is junk! It will take out your sprockets if you don't keep a close eye on it.
As for performance, it will decrease on all counts, but is still acceptable. The bike will be a bit smoother at upper cruising (70 mph) speeds. Mileage will be essentially the same. Top speed may decrease a couple of miles an hour. The punch off a light will decrease, but is still adequate. A 19T sprocket would even be worse. Jack and I both found the 18T quite serviceable.
Bare

[singhg5]

....  should i use the 530-102 x-ring chain if changed to 18t?

I have standard DID 530 chain with 102 pins for my G5 that has 18 tooth sprocket - Absolutely no complaints of chain.

Just make sure that master link is included in your purchase.

[gtdohc]

Thanks for all the input especially Bare being so informative, the video from you tube helps a ton as well.

[Ragmas]

G5 comes with 17 Tooth sprocket as shown in the video. 

One tooth higher is 18 Tooth sprocket for G5. 

(NOTE - Do not confuse with C5, which is different)

Here is the picture of original sprocket in the G5.

I stand corrected, thank you singh.  I must left my countin' fingers in my other pocket.

[gtdohc]

Other than Nfieldgear, anyone know any place i can get a cheaper 18t sprocket? As $60 seems like alot just for a simple gear compared to the 17t ($18) from other vender.

[Arizoni]

Hmmmm.  A $18 sprocket?

I don't have one so I'm just guessing that there is a good possibility that the cheap sprocket is made out of low carbon steel.
If so, it is not heat treated and it very likely was stamped out of a steel plate using a die mounted in a punch press.
It might have no machining done to it at all except to remove the sheared edges on the teeth and in the splined center hole.
If this is true, the precision and surface finish on the working surfaces is at the mercy of the punch and die.

Although there is undoubtedly a markup in price for the $60 sprocket I would expect it to be made from a hardenable steel, fully heat treated after the spline and sprocket teeth had been machined on it.
There would be no rough edges or surfaces or spacing errors in the spline or the teeth.

On the other hand, I guess there's no way to really know without buying one of the El Cheapo's.

[no bs]

i went 1 tooth up on my 06 bonnevile. i think i paid $34, aftermarket from the santa rosa dealer. had no problems.