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Which Shimano NEXUS C6000 do I want?

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Which Shimano NEXUS C6000 do I want?

Old 11-30-23, 05:31 PM
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Which Shimano NEXUS C6000 do I want?

With the number of units, and my inability to find a simple feature chart, which Shimano NEXUS C6000 do I want?
  • Gates Belt Drive
  • Disc Brake, 180mm
  • I would prefer the availability of trigger shifters over grip shift.
  • 36 hole
This is to replace a NuVinci IGH.
I would also really appreciate it if someone could also tell me what spoke lengths I would need to put this on a 27.5" rim.

I suspect this is the one I want:

am I right?

Last edited by Robert C; 11-30-23 at 05:45 PM.
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Old 11-30-23, 06:01 PM
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The difference in any Gates Drive version is going to be the cog. You can buy those separately.

The anti rotation washers shown (blue and green) are for vertical drop outs. These determine the clocking of the cassette joint. Shimano makes a variety of others intended for all manner of vertical, horizontal, diagonal and any angle in between. These are inexpensive and may require more than one purchase to get the set that fits your particular bike best.

Trigger shift and grip shifters are interchangable. Just buy the one you want.

The Alfine hub has a different cassette joint that operates by pulling the cable from the top, not the bottom like the Nexus. The reverse configuration of the Alfine is said to help with shifting under a slight load. The Nexus requires (requests, really) no load be applied to shift. The Alfine will be more forgiving in a powered application.

The 180mm center lock rotor is a seperate item of the brake system independent of this hub, or any hub. Centerlock is the Shimano standard this Shimano hub uses. (Other companies use a generic non-proprietary 6-bolt standard.) Any centerlock rotor will mount to this hub.

Whether your bike will accept a 180mm rear rotor depends on your bike frame. Largely owing to frame geometry, brake caliper location and whether or not whether or not the necessary adaptors can be made to work. Some bikes can not accept 180 rotors because the frame only accommodates 140/160 flat mount calipers for example. Sometimes there are physical interference issues such as the 180mm rotor hitting the chainstay, or the caliper hits the seat stay making mounting impossible. Of course, if you already have a 180mm rotor installed and running well, well then, disregard.

As far as the spoke length, that is determined by your specific rim and hub combo. There is no predetermined answer. The answer is determined by direct measurement and some math done at the time you have the parts on hand.

A reputable bike shop should have a wheel builder on staff. Expect a minimum of ~$100+ for labor plus spokes at at least $1-2 each minimum. The shop is not making money on this. They do it because it's a courtesy to a customer with a particular need and an opportunity for a mechanic to hone a skill.

Machine built wheels really knocked the floor out from under human endeavors in this arena. Be glad some one is still around to do build at all in a professional capacity. Be grateful that at best, they're basically working for free and at the same time foregoing other profitable shop jobs to earn a long term customer.

Last edited by base2; 11-30-23 at 11:14 PM.
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Old 11-30-23, 11:03 PM
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You can match just about any rim to any hub. With a spoke length calculator, just enter the measured dimensions and that will get you the proper spoke length. I know how to measure the raw parts, but find that a spoke length calculator is very easy to use and gets you the correct spoke length as long as the correct measurements are used. I prefer to use the DT Swiss calculator for my measurements. Using manufacturers posted measurements has always given me the correct spoke length within a millimeter or two.
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Old 12-03-23, 05:59 AM
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For trigger shifters, Shimano SL-S503 is better than later versions since 1 is 1 and 8 is 8.

Alternative is Microshift SL-N758
If title contains Nexus, then is 1 is 1 and 8 is 8.
Else, 1 is 8 and 8 is 1
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