Nexus Shimano cog Reviews

Customer Ratings:

It fits perfectly on an old single speed coaster brake hub. It makes my beach cruiser noticeably easier to pedal into the wind and up hills compared to the old and worn 19 tooth sprocket it replaced. It delivers a nice, straight chain line with the concave side facing toward the hub. No problems with the part after 11 days and 261 miles of cycling.

It's wonderful for local rides in town. Start and stop riding is easier. Merging up onto the highway is easier. Heavy cargo is carried smoothly. Climbs that used to be slightly strenuous are a breeze now. I think it's better for the bike not to stress the cranks and chain the way higher gears tended to do.

It's easier to keep clean than the old sprocket. It's physically larger, so there's more clearance between the teeth and spokes for a gear brush and towel to remove road grime.

After a few test rides and bearing cone adjustments, the bike rode silently with the new sprocket. Shimano did a great job manufacturing this product. It was shipped with a thin coating of oil, which I presume protected it in storage.

I will definitely buy this brand again when the time comes. This sprocket starts to spin out the 44:20 drivetrain at around 18 mph, but I've gotten the bike up to 22.2 mph on a downhill run. My average speed is 10.5 mph, so I might try an even lower gear some day. It feels good to ride at 13 to 14 mph in tailwinds with minimal effort, so this 20 tooth sprocket is close to ideal.

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Shimano makes nice cogs and chainrings they are thicker than most which adds rigidity to the driveline. And they look good too.

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I recently built a simple Nexus 3-speed bike, converting it from an old 18-speed setup. The frame required that I use a smaller than desirable chainwheel in the conversion. This smaller 16T cog was a perfect solution to maintaining a reasonable pedal speed.

Honest reviews on Nexus Shimano cog

This is the smallest (fastest) cog for the Alfine/Nexus hubs. 16T is 13% faster than the 18T that came on my 2011 Dahon Cadenza XL which uses a 32T chainring. This is the difference between keeping up with traffic and getting passed by angry drivers. Take it to a shop where the mechanic knows about hub gears. This will REQUIRE tensioning your chain after installation.

I will buy another one when it wears out. Then another one after that. The price is right. My mech wanted "a beer's worth" to install it. I gave him $15 but I could have easily given him $5 and made him happy. Takes 5 minutes to install the cog, but the chain tensioning on my bike is very complicated and that's what you'll end up spending the labor on.

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I put this bigger cog on my coaster brake cruiser and now I can climb a few of the local hills without having to stand on the pedals. It fit my wheel just fine, but I did have to add a link of chain to make the whole thing work. None of my local bike shops carry anything like this; I was glad to be able to find it on amazon.