building a stunt bike
07-20-2008 | 03:53 AM
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07-20-2008 | 04:07 AM
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02-15-2009 | 04:14 PM
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Re: building a stunt bike
Wanna change youe gearing for stunting? read this...
What is Pitch?
Pitch is quite simply the thickness of the chain and sprockets. 520/525/530 520 being the thinnest and 530 being the thickest. 520 has the advantage of being lighter weight and increasing performance just from the loss of rotating mass. However, the thinner profile does have a shorter life expectancy than a thicker 525 or 530. Likewise, 530 provides a stronger, longer life expectancy but can increase rotating mass. Generally 600’s will use 520 or 525 while 1000’s will use 530.
Where do I start?
We recommend anybody looking to run larger sprockets starts with the back. Down -1 tooth in the front is roughly equal to +3 in the back. Also, anytime more than one or two teeth are added in the back a new chain will be required to fit. For this reason it is generally easier to start gearing with the back. Pick a rear sprocket and chain that will fit your riding style. As you progress or decide to change your gearing it is much easier to change the front sprocket to accommodate. This eliminates the need for new costly rear sprockets and chains. (Ex. Adding +3 to the gearing can be accomplished for $15 with a -1 front sprocket vs. a +3 rear sprocket and new chain.)
What gearing is right for me?
+5 – Provides a good place to start for anybody looking to get a little more into the stunts without sacrificing street riding or too much top speed. Will gain some torque/acceleration while losing roughly 10% of top speed.
+10 - Provides good amounts of power for slower wheelies while still having decent street riding. Will gain good torque/acceleration while losing roughly 20% of top speed.
+15 – Provides great power for technical slow wheelies. Street riding will be reduced to moderation in the city limits. No highways. Will gain great torque/acceleration while losing roughly 30% of top speed.
+20 - Provides huge power for anything and everything technical. Street riding will be reduced to just parking lots. Not for beginners. Will gain huge torque/acceleration while losing roughly 40% of top speed.
+25 or bigger – Ridiculous… but fun. Go big.
What is Pitch?
Pitch is quite simply the thickness of the chain and sprockets. 520/525/530 520 being the thinnest and 530 being the thickest. 520 has the advantage of being lighter weight and increasing performance just from the loss of rotating mass. However, the thinner profile does have a shorter life expectancy than a thicker 525 or 530. Likewise, 530 provides a stronger, longer life expectancy but can increase rotating mass. Generally 600’s will use 520 or 525 while 1000’s will use 530.
Where do I start?
We recommend anybody looking to run larger sprockets starts with the back. Down -1 tooth in the front is roughly equal to +3 in the back. Also, anytime more than one or two teeth are added in the back a new chain will be required to fit. For this reason it is generally easier to start gearing with the back. Pick a rear sprocket and chain that will fit your riding style. As you progress or decide to change your gearing it is much easier to change the front sprocket to accommodate. This eliminates the need for new costly rear sprockets and chains. (Ex. Adding +3 to the gearing can be accomplished for $15 with a -1 front sprocket vs. a +3 rear sprocket and new chain.)
What gearing is right for me?
+5 – Provides a good place to start for anybody looking to get a little more into the stunts without sacrificing street riding or too much top speed. Will gain some torque/acceleration while losing roughly 10% of top speed.
+10 - Provides good amounts of power for slower wheelies while still having decent street riding. Will gain good torque/acceleration while losing roughly 20% of top speed.
+15 – Provides great power for technical slow wheelies. Street riding will be reduced to moderation in the city limits. No highways. Will gain great torque/acceleration while losing roughly 30% of top speed.
+20 - Provides huge power for anything and everything technical. Street riding will be reduced to just parking lots. Not for beginners. Will gain huge torque/acceleration while losing roughly 40% of top speed.
+25 or bigger – Ridiculous… but fun. Go big.
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