Sprocket size . . . Need feedback

[BA BUSA]

(buffalojoe @ Apr. 02 2007,00:04) well.. not sure if you notice... (not being a bobo..) but it is really bout 9000miles on em.. we here Canadians have the
metric deal.. just wasn't sure if you noticed the KM part..

Thanks for the reply tho.. just wanted to make sure...

Do you think with 9000miles on the original it needs both
still? or can I get away with just the rear sprocket this
year and do the chain next? is there a tell tale sign that the
chain is worn or does it just snap when it's done?

Thanks again
Joe.

9K miles or like the topic starter 12K...it all depends on how much wear you have on the gears.
I know of people getting over 30K miles on stock gears and chain, also seen people wear them out in 5-10K.

 

[Luvanicebum]

<span style='font-family:trebuchet ms'></span><span style='color:royalblue'></span>
Proper chain lube habits really lengthen chain/sprocket life. I have 10K on my 06 and my Mechanic said it looked practically new still. I lube the chain every week (300 miles)...Wednesday-Trash Day, Lube Chain Day.
Lube it up!!!

 

[nocturnal]

(Truckracer @ May 13 2007,10:39) Here is a link to a great gearing calculator..

Good calculator.

Just wished it had an option to read speed in mph as to just km/h

 

[Adox]

Here's a theoretical chart for MPH

Gearing 1st 2nd 3rd 4th 5th 6th

16/39 77 104 132 157 178 194
16/40 75 101 129 153 173 189
16/41 73 99 126 150 169 184
16/42 72 97 123 146 165 180
16/43 70 95 120 143 161 176

17/39 82 111 141 167 189 206
17/40 80 108 137 163 184 201
17/41 78 105 134 159 180 196
17/42 76 103 131 155 176 191
17/43 74 100 128 152 171 187

18/39 87 117 149 177 200 218
18/40 85 114 145 173 195 212
18/41 83 112 142 168 190 207
18/42 81 109 138 164 186 202
18/43 79 106 135 161 182 198

19/39 92 124 157 187 211 230
19/40 89 121 153 182 206 224
19/41 87 118 150 178 201 219
19/42 85 115 146 173 196 214
19/43 83 112 143 170 192 209