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Setup
Primary Drive Ratio
Rear

Width
-Tire-

%
Size

Rim
Tire Circum-ference
M.P.RPM
Final Drive
Ratio
Front / Rear
Chain Pitch
mm
Chain Links
tlight
Stock:
//
/
.
Current:
//
/
.
Custom:
//
/
Ratio
1st Gear
Ratio
2nd Gear
Ratio
3rd Gear
Ratio
4th Gear
Ratio
5th Gear
Ratio
6th Gear
Ratio
7th Gear
/
/
/
/
/
/
/
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GPS Speed in Km/h at RPM in Gear in selected setup:    Stock       Current       Custom   
Enter minimum
 RPM▬►
to display (help)
Speed 1st Gear
Speed 2nd Gear
Speed 3rd Gear
Speed 4th Gear
Speed 5th Gear
Speed 6th Gear
Speed 7th Gear

     

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GPS Top speed for 49 final drive combinations in Km/h at M.P.RPM in Custom setup:

Enter gear to display
top speed of (help):
 

Custom
Front
sprocket
- 3
Custom
Front
sprocket
- 2
Custom
Front
sprocket
- 1
Custom
Front
sprocket
=
Custom
Front
sprocket
+ 1
Custom
Front
sprocket
+ 2
Custom
Front
sprocket
+ 3
Custom Rear sprock.  -3
Custom Rear sprock.  -2
Custom Rear sprock.  -1
Custom Rear sprock.   = 
Custom Rear sprock. +1 
Custom Rear sprock. +2 
Custom Rear sprock. +3 

   

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head
RPM differences due to drive train setup changes:

Enter custom
Speed (help):

 

Stock Final
Drive Ratio

Current Final
Drive Ratio

Custom Final
Drive Ratio

Difference 
Current
to Stock
in percent:

in RPM:
Difference 
Custom
to Current
in percent:

in RPM:
Difference 
Custom
to Stock
in percent:

in RPM:
RPM in 1st Gear
RPM in 2nd Gear
RPM in 3rd Gear
RPM in 4th Gear
RPM in 5th Gear
RPM in 6th Gear
RPM in 7th Gear

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Chain Links Calculator for Generic Final Drive with new chain
Enter # teeth
Generic Front Sprocket
Enter # teeth
Generic Rear Sprocket
Enter Chain Pitch
Gen. Final Drive
in mm
Enter Spr.Dist.
Gen. Final Drive
in mm
Number Links
Calculated
Gen. Final Drive
Number Links
Recommended
Gen. Final Drive
Actual Sprocket
Distance for
Recommen. Links
Move wheel Forw.
(-) or Backw. (+)
for Recom. Links

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Loaded Bike: Effect of final drive changes on links & wheel position
Chain
(help)
Stock
 /
 chain &
  sprockets
Current
 /
 chain &
  sprockets
Custom
 /
 chain &
  sprockets
Difference
(Current - Stock)
Difference
(Custom - Curent)
Difference
(Custom - Stock)
Pitch in mm 
Links 
Chain / Belt Length in
Chain / Belt
Sprocket Distance in mm 
Current Wear in % 

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Currently Loaded Bike: Relative sprocket & chain wear due to drive train changes: (help)
  Same Tooth - Same Link (help)                                       Tooth-Links contacts & Link-Teeth contacts (help)
Same
tooth-chain
position every X chain rev's
Stock
 chain &
 sprockets 

Chain Rev's
Current
 chain &
 sprockets 

Chain Rev's
Custom
 chain &
 sprockets 

Chain Rev's
Number  of
contacts
per
Stock
 chain &
 sprockets 

contacts
Current
 chain &
 sprockets 

contacts
Custom
 chain &
 sprockets 

contacts
Difference
(Current - Stock)

%
Difference
(Custom - Current)

%
Difference
(Custom - Stock)

%
Front
Front
Rear
Rear
Both F & R
Link

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 DUCMANs Đ 2005 - 2026   Version:   Date:      Unique Hits Since September 20th, 2005:

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