Shimano 6400 uniglide cassette compatibility

[veljavelja14]

Hello everyone,

I am planning on swapping my old Shimano Tricolor 6400 7 speed uniglide freehub cassette and chain. Since the same cassette is hard to find in Serbia and is expensive, I am looking for a cheaper compatible 7s Shimano cassette, preferably a newer hyperglide. I have seen the conversion article (https://bicikl.bikegremlin.com/1411/kompatibilnost-kaseta-bicikla/) and I would be choosing the smallest lockring replacing method. Do you have any suggestions on which 7s cassette to buy (preferably with a larger 'big' cog since current one feels like hell on steep terrain)?
If not possible, I would only replace the old chain. So my other question would be which newer hyperglide shimano 7s chain would be compatible with the old 6400 uniglide cassette?
Or if you have other suggestions, be free to propose them.

Thanks!

 

[BikeGremlin]

Hello everyone,

I am planning on swapping my old Shimano Tricolor 6400 7 speed uniglide freehub cassette and chain. Since the same cassette is hard to find in Serbia and is expensive, I am looking for a cheaper compatible 7s Shimano cassette, preferably a newer hyperglide. I have seen the conversion article (https://bicikl.bikegremlin.com/1411/kompatibilnost-kaseta-bicikla/) and I would be choosing the smallest lockring replacing method. Do you have any suggestions on which 7s cassette to buy (preferably with a larger 'big' cog since current one feels like hell on steep terrain)?
If not possible, I would only replace the old chain. So my other question would be which newer hyperglide shimano 7s chain would be compatible with the old 6400 uniglide cassette?
Or if you have other suggestions, be free to propose them.

Thanks!

Hi,

Any Shimano 7-speed cassette should work. This is a cheap model that comes in 12-28, and 12-32 teeth versions, available in Serbia right now (Planet Bike):
https://planetbike.rs/kasetni-lancanik-7-brzina-shimano-tourney-cs-hg200-ecshg2007-c.html

In case your smallest Uniglide sprocket has 11 teeth, note that the cassette has a 12-14-16... layout, so you'll have a relatively large "jump" between your tallest and your second-tallest gears. Not a big problem if you use the 11t sprocket as a lockring only (50-14 combination still gets you close to 40 km/h with a moderate 80 rpm cadence).

However, you could look for a cassette with a 11-13-15-17... layout.

Depending on your rear derailleur's capacity, you might even consider a 12-34 (or 11-34) range cassette. Some older short-cage Shimano road derailleurs have problems handling even 32 teeth, but newer ones can handle 34 without any problems.

For chains: any 7 or 8-speed chain should work nicely (I even ran a 10-speed chain with a 7-speed cassette and had no problems ). I like KMC X8 chains, but any other should work.

Cheap, KMC Z7:
https://planetbike.rs/biciklizam/delovi/lanci-i-lancanici/lanac-kmc-z7-7-brzina-sa-brzom-spojnicom-2.html

KMC X8:
https://planetbike.rs/biciklizam/delovi/lanci-i-lancanici/lanac-kmc-x8-8-brzina-sa-brzom-spojnicom-2.html

P.S:
My chain durability test.

Relja MixMatch Novović

 

[veljavelja14]

Hi,

Any Shimano 7-speed cassette should work. This is a cheap model that comes in 12-28, and 12-32 teeth versions, available in Serbia right now (Planet Bike):
https://planetbike.rs/kasetni-lancanik-7-brzina-shimano-tourney-cs-hg200-ecshg2007-c.html

In case your smallest Uniglide sprocket has 11 teeth, note that the cassette has a 12-14-16... layout, so you'll have a relatively large "jump" between your tallest and your second-tallest gears. Not a big problem if you use the 11t sprocket as a lockring only (50-14 combination still gets you close to 40 km/h with a moderate 80 rpm cadence).

However, you could look for a cassette with a 11-13-15-17... layout.

Depending on your rear derailleur's capacity, you might even consider a 12-34 (or 11-34) range cassette. Some older short-cage Shimano road derailleurs have problems handling even 32 teeth, but newer ones can handle 34 without any problems.

For chains: any 7 or 8-speed chain should work nicely (I even ran a 10-speed chain with a 7-speed cassette and had no problems ). I like KMC X8 chains, but any other should work.

Cheap, KMC Z7:
https://planetbike.rs/biciklizam/delovi/lanci-i-lancanici/lanac-kmc-z7-7-brzina-sa-brzom-spojnicom-2.html

KMC X8:
https://planetbike.rs/biciklizam/delovi/lanci-i-lancanici/lanac-kmc-x8-8-brzina-sa-brzom-spojnicom-2.html

P.S:
My chain durability test.

Relja MixMatch Novović

Thank you for the quick response!

I ll then buy a regular Shimano 7s cassette (something a bit better than Tourney ) and replace the smallest cog with my old lockring.
11-13-15... layout might not be a must, since I use this bike for commuting only (25-30 km/h max) so I ll check both options.
I also have a 6400 rear derailleur. Do you think that it can handle a 32 teeth cog?
KMX X8 chain will suite me well

Cheers!

 

[BikeGremlin]

I fear that Shimano Tricolor 6400 rear derailleur will struggle with anything over 28 teeth.
You could swap it for any Shimano rear derailleur with 9 or fewer speeds, with a mid-length cage (GS), or a long cage (SGS). Even MTB derailleurs will work.

For cassettes, classess perform fairly similarly, the main difference is the weight. So I would not mind a Tourney class cassette in terms of technical performance. My video on "cheap and good cassettes":

 

[veljavelja14]

Update:
Configuration of my old 7s cassette is 14-16-18-20-22-25-28T (https://velobase.com/ViewComponent.aspx?ID=20445c98-9812-4564-9277-593c4c646a24&Enum=123). If I am not mistaking, it was a transitional model (freewheel teeth config, but is actually a freehub). The problem is, all of the available cassettes with 14-28T config (that I searched for in Serbia) are a freewheel models.
So, I ll have to search for the same configuration freehub cassette, without exceeding the 28T largest cog size? Do you have any suggestions?

 

[BikeGremlin]

Update:
Configuration of my old 7s cassette is 14-16-18-20-22-25-28T (https://velobase.com/ViewComponent.aspx?ID=20445c98-9812-4564-9277-593c4c646a24&Enum=123). If I am not mistaking, it was a transitional model (freewheel teeth config, but is actually a freehub). The problem is, all of the available cassettes with 14-28T config (that I searched for in Serbia) are a freewheel models.
So, I ll have to search for the same configuration freehub cassette, without exceeding the 28T largest cog size? Do you have any suggestions?

See my first reply.
I've linked to a cassette that comes in 12-28, and 12-32 combinations.
And should be available in Serbia, right now (Planet Bike's online store ususally keeps their inventory up-to-date).

Edit:
Their user-interface is probably not the best, so here's a screenshot showing the 12-28 option selected:

Relja

 

[veljavelja14]

See my first reply.
I've linked to a cassette that comes in 12-28, and 12-32 combinations.
And should be available in Serbia, right now (Planet Bike's online store ususally keeps their inventory up-to-date).

Relja

Guess I will end up with a hybrid 14-14-16-18-21-24-28T config Either way, it solves my problem. Thanks!

 

[BikeGremlin]

Guess I will end up with a hybrid 14-14-16-18-21-24-28T config Either way, it solves my problem. Thanks!

Hahah.

Well, it would have the advantage of the "lockring" (the smallest Uniglide sprocket) being able to get worn out, without you losing the currently top gear ratio.

Relja