16 Tooth Front Sprocket for Next to Nothing!

[gzlocal]

Hi guys! Just wanted to let you all know that amazon has the jtf434.16 16 tooth front sprocket for our bikes for the cheapest I've seen it. $15.14 with FREE SHIPPING! Last I checked, they had 12 left. I snagged one up since I've been waiting to pick one up until they were as cheap as possible. I guess you can tell why I get along so well with my GZ! :tongue:

Here's the link: http://www.amazon.com/gp/product/B00...7GEN16V3JKQ36Z

[alantf]

Reduced to $12.93 :2tup:

[Way]

I knew the price would drop after I bought mine a couple of months ago. :shocked:

You're welcome. :retard:

Hope you're all set for rain. I've got to wash my cars and the bike due to construction on my road.

[gzlocal]

Yep, wouldn't ya know it, they drop the price the VERY NEXT DAY AFTER I BOUGHT THE DARN THING! Must have been because I actually bought one. Oh well, I'll save the $2 in gas anyway, lolz.

[mrlmd1]

Most companies have to honor the sale price if you purchased an item within the last 30 days since they dropped the price. Call them up and complain. If it didn't cost so much, you could send it back for a refund, then buy it again at the lower price.

[blhohrein]

Hi, newbie, What is the benefit of the smaller sproket?

[Water Warrior 2]

Originally Posted by blhohrein

Hi, newbie, What is the benefit of the smaller sproket?

The 16 tooth sprocket is one tooth larger actually. 15 teeth are standard OEM. The larger front sprocket drops engine RPM somewhat and is a nice addition to some bikes. Depending on your riding style and needs the larger sprocket is good or bad.

[blhohrein]

Whats an example where this would be a beneficial mod?

[greatmaul]

This thread here: http://www.gz250bike.com/forum/viewtopic.php?f=9&t=4505 is pretty recent and goes into some of the hows and whys about the sprocket swap. I'd try to sum it up but it's a might confusing. It may be one of those things you have to try by the seat of your pants and see if it fits how you ride. There's also a how-to elsewhere here about the actual swap.

[jonathan180iq]

Originally Posted by blhohrein

Whats an example where this would be a beneficial mod?

~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ ~~
Possibly the easiest mod that you can do which will have a pretty drastic change to the way your bike performs is to change the final drive gearing.

The final drive of the GZ250 is a simple chain/sprocket combo. The final drive ratio is 2.73. This number is easily calculated by dividing the number teeth on the rear sprocket by the number of teeth on the front sprocket. In our case, since we have a factory sprocket combination of 15 and 41 (15 teeth in the front and 41 in the rear) the calculation would look like this.

41 / 15 = 2.73333333 (or 2.73)
The lower the gearing, the lower the revs. The higher the gearing, the higher the revs.
You'll almost never want to change any sprocket more than one or two teeth sizes in any direction over the factory number.

By comparison, switching over to a 16T front sprocket lowers the final drive ratio to 2.56 (41/16)

What does this mean in practical application?
The 16T front sprocket lowers cruising revs in all gears and allows the lower gears to be used for a longer period of time. However, you will probably notice a drop off in your top speed. While the factory gearing allows the GZ to reach somewhere around 80mph, the 16T front sprocket will lower that to around 70mph. The reason being that the internal gearing of 5th gear has a ratio of .818, which is basically an internal overdrive and seems to make the gear too "tall" for the mighty GZ to handle.


Where can I purchase a new sprocket?

The Suzuki factory part number for a 16T sprocket is 27511-37200
The JT Sprockets part number is JTF 434.16

Sprocket Specialists make both front and rear sprockets for the GZ250.
The front sprockets are available from size 10-16. Part number: 528-(number of teeth)
The rear sprockets are available from size 28-74. Part number: 461-(number of teeth)



How do I change my front sprocket?

http://www.gz250bike.com/viewtopic.php?t=317