Upgrading 11/25 > 12-28 cassette ?
Hey guys,
I need to replace some parts on my bike, but was hoping for some advice.
The chain Im planning on getting is,
KMC X10-73 114 links
http://www.chainreactioncycles.com/au/en/kmc-x10-73-10-speed-chain/rp-prod120675
But I was advised that, as my current chain was really flexable, I should consider replacing my Cassette too.
Currently I have an 11/25 Shimano 105 5600 , but would like to go to a 12/28t. I've been told, however, that Im limited to the size I can go as a result of my chainrings and my derailleur size (SS short cage)
2x Chainrings - 52/38
cassette - have 12/25 - want 12/28 (maybe 11/28)
***Question: 11t is a harder gear then 12t ? So if I wanted my hard gear to be a little harder, and my eaasier gear to be a little easier.. I should change from 12/25 to maybe 11/27 or 28???
subtract small chainring teeth from big chainring + subtract smallest cog from largest) total number needs to be 29 or less. )) total comes to 27.
Am I limited to a max of 27t on my large cassette ring? Has anyone gone 28t with this setup before ?
I need to replace some parts on my bike, but was hoping for some advice.
The chain Im planning on getting is,
KMC X10-73 114 links
http://www.chainreactioncycles.com/au/en/kmc-x10-73-10-speed-chain/rp-prod120675
But I was advised that, as my current chain was really flexable, I should consider replacing my Cassette too.
Currently I have an 11/25 Shimano 105 5600 , but would like to go to a 12/28t. I've been told, however, that Im limited to the size I can go as a result of my chainrings and my derailleur size (SS short cage)
2x Chainrings - 52/38
cassette - have 12/25 - want 12/28 (maybe 11/28)
***Question: 11t is a harder gear then 12t ? So if I wanted my hard gear to be a little harder, and my eaasier gear to be a little easier.. I should change from 12/25 to maybe 11/27 or 28???
subtract small chainring teeth from big chainring + subtract smallest cog from largest) total number needs to be 29 or less. )) total comes to 27.
Am I limited to a max of 27t on my large cassette ring? Has anyone gone 28t with this setup before ?
0
Comments
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I think 28T is the maximum for a short cage rear derailleur, so you should be okay.
An 11T on the cassette is a longer gear (i.e. harder to pedal) than a 12T.
The advantage of a 12-28 is a closer spread of gear ratios. Disadvantage is that you compromise your longest gear, and you might "spin out" going down hill. With a 52T up front, I doubt you really need an 11T, because you'll still be able to pedal up to 40+mph.
The only time you need to worry about the difference between number of teeth is on the front chainrings. I think something around a 16T difference is what most of the manufacturers will say that their front derailleurs will cope with.0
