Join Date: Oct 2004
Location: DC / Maryland suburbs
Bikes: Homebuilt tourer/commuter, modified-beyond-recognition 1990 Trek 1100, reasonably stock 2002-ish Gary Fisher Hoo Koo E Koo
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Lessee... 25 to 30, 2.5 links that would be. Stock chains are usually sized very conservatively (meaning that they have more chain than you need). Since you shouldn't be using the large cog with the large chainring anyway, you'll almost certainly have no problem with that swap.