Wanted: Shimano 10-12 sprockets

[Jbr]

25 minutes ago, Spoke n Bean said:

I just replaced my chain on my bike at 0.5 and the 10t cog is slipping and skipping and dancing around. Awfully frustrating. 

Anyway, anyone with stock, please let me know asap. 

Thanks.

Ru

I'm assuming shimano ? I've got a lot of love for their products (although a bit less since I moved to 12spd on the road), but that 10spd cog on the MTB cassettes is super ***, they start slipping very quickly, never had that problem on sram 10spd cog... I replaced my 10-12 with cogs I found on aliexpress (they look OEM, but probably fake), it slips on all out sprints, but rides okay-ish at normal wattages..

 

EDIT : I see I'm going like a broken record on this thread

Edited February 28, 2024 by Jbr

[Spoke n Bean]

Also went the ALi Express route. The one I ordered has shimano packaging, so I'm hoping it will yield good results. Ordered the whole lot up until 18th to replace the bottom half of the cassette, I think this way helps as a proof of concept as well as getting more life from the cassette overall.
SJS cycles uk, Bike discount de, worldwide cyclery, and various other internationals seem to stock all sorts of cassette spares, but shipping is the killer.
Will report back on my ali express order regarding originality, delivery, etc.
 

[JBK]

On 3/4/2024 at 8:48 AM, Spoke n Bean said:

Also went the ALi Express route. The one I ordered has shimano packaging, so I'm hoping it will yield good results. Ordered the whole lot up until 18th to replace the bottom half of the cassette, I think this way helps as a proof of concept as well as getting more life from the cassette overall.
SJS cycles uk, Bike discount de, worldwide cyclery, and various other internationals seem to stock all sorts of cassette spares, but shipping is the killer.
Will report back on my ali express order regarding originality, delivery, etc.
 

Hey Pal - what was your experience with the AliExpress parts ? You should be able to give us a 12 month review by now. If they slip under load then it's not a worker as that could lead to injury.

I have two cassette's that were replaced due to the bottom three worn out sprockets - all other sprockets are good - so I want to get these replacement sprockets. 

[Inked Mountain]

7 minutes ago, JBK said:

Hey Pal - what was your experience with the AliExpress parts ? You should be able to give us a 12 month review by now. If they slip under load then it's not a worker as that could lead to injury.

I have two cassette's that were replaced due to the bottom three worn out sprockets - all other sprockets are good - so I want to get these replacement sprockets. 

I’ve got a few different Shimano options in stock. 
https://www.bicyclepart.co.za/parts-catalogue/ring-sets.html

[MORNE]

On 2/28/2024 at 6:26 PM, Spoke n Bean said:

I just replaced my shimano SLX chain on my bike at 0.5 and the 10t cog is slipping and skipping and dancing around. Awfully frustrating. 

Cassette is Deore, rest is slx.

Anyway, anyone with stock, please let me know asap. 

Thanks.

Ru

https://evobikes.co.za/product/shimano-csm9100-sprocket-unit-10-12t-new-code-sold-as-a-set/?srsltid=AfmBOoo4Cu9KXjWpPXyG-TCNEACsg5R3ziDt-fpfX3wt8tdJ-GDO0_7-

[Spoke n Bean]

1 hour ago, JBK said:

Hey Pal - what was your experience with the AliExpress parts ? You should be able to give us a 12 month review by now. If they slip under load then it's not a worker as that could lead to injury.

I have two cassette's that were replaced due to the bottom three worn out sprockets - all other sprockets are good - so I want to get these replacement sprockets. 

Howzit, I've put another 1000+ km on since this post. I recently ordered another set for the inevitable time these are done.

I've honestly had no issues at all, but one mate reported his downshifts were slower. I think his setup is slightly different to mine.

The bottom two cogs (10+12) are in Shimano packaging and the 14-18t seem generic although they have shimano part numbers on the packaging.
All the ramps etc match the old shimano parts perfectly and shifting has been pretty good on my side!
All up to 18 teeth cost me R640 including shipping and were here within a week on the last order, which is kinda nuts considering the east's shipping reputation!

https://www.aliexpress.com/item/4000570830613.html?spm=a2g0o.order_detail.order_detail_item.3.ded27d56Us1fNf

Edited May 8 by Spoke n Bean

[JBK]

Thanks mate - i see that's the norm - 10t & 12t seem to be original with the others generic. 

I do 1,000km every +-8 weeks though so I wonder how they'll put up with more wear. 

If the 10&12 are genuine though - should be good - I'll order and see.

*** just went online - shipping is R1,965 ??? ***

Edited May 8 by JBK

[Spoke n Bean]

Ja, if you're doing that amount of distance, I'd 100% recommend at the least getting the 10 and 12.
The others work great and seem really good, but I only do around 5000 a year.
Come to think of it, I just checked my strava, I underestimated my kilo's, those sprockets have done over 4000 since April last year by the look of it. Hard to believe!

I have put a new kmc chain since then as well, the shimano chains seem to wear fast and was just under 0.5 by November, the kmc is still measuring well under 0.5 since replaced in December.