How to count teeth on rear sprocket ?? (serious question:) )

[ColinJ]

Funnily enough, I was doing this about an hour ago. I couldn't remember if the ridiculously wide-range cassette that I have put on my CAADX started at an 11 tooth sprocket or a 12. (It's an 11.) The tooth count is clearly visible on each sprocket.

Anyway, I finally sorted out the indexing of the new gears and am about to go out and test it so I can't hang about here all day gossiping! (The new XT 'Shadow' rear mech appears to be really sensitive to cable friction so I had to use the minimum possible length of rear outer, lube the cables, take a pair of links out of the chain, and adjust the B-screw ,as well as very carefully tweaking the inline cable tension adjuster. I have got the system so it shifts up and down over all 10 sprockets when in either ring, but it is borderline on a couple of shifts, so I foresee problems ahead if dirt gets in, or the mech spring loses tension.)

 

[tyred]

Wipe the grime off one of the teeth...

I can't see any of them underneath all the dirt...

 

[mybike]

Wipe the grime off one of the teeth...

Or rust.

 

[slowmotion]

For extra accuracy, it's essential that you count out loud.

 

[Spoked Wheels]

There is a good chance the cassette is a Shimano then the most accurate way is to count in Japanese.

 

[mybike]

Out loud in Japanese?

 

[winjim]

I tried that but it gave me an itchy knee.

 

[youngoldbloke]

Related question to occupy your fertile minds (new thread?). How do you make sure you've lubed every roller in the chain?* I use a syringe and put a drop of Prolink on each one. Its easy if your chain has a quicklink as you can see it coming, but not otherwise. I have the answer but what other solutions can you offer?
* or even count every link

 

[bpsmith]

I use the UV torch that comes with my lube.

 

[coffeejo]

Scrape the grime off one link.

 

[Yellow Saddle]

Count the number of links. Multiply that with the volume of the oil required to form a drop. Then multiply that with the mass of a drop of oil.

Then, when you are actually oiling the chain, you weigh the dropper bottle before and after the procedure and see whether the bottle has lost the required amount of weight for the right number of drops.

 

[Milkfloat]

I use the UV torch that comes with my lube.

Is this bike related?

 

[winjim]

Related question to occupy your fertile minds (new thread?). How do you make sure you've lubed every roller in the chain?* I use a syringe and put a drop of Prolink on each one. Its easy if your chain has a quicklink as you can see it coming, but not otherwise. I have the answer but what other solutions can you offer?
* or even count every link

If you lube little and often, it's not that important to get every link every time, it'll all even out in the long run.

 

[T.M.H.N.E.T]

Shouldn't it be stamped on the teeth somewhere?

 

[SatNavSaysStraightOn]

Shouldn't it be stamped on the teeth somewhere?

despite it being mentioned by several people, this option has been deemed to easy. learn Japanese first, then and only then with of a drop of oil multiplied by some unknown constant can you count the number of teeth on your sprocket.