Subject: RE: derailluer size According to United Bicycle Institute: Determine Maximum Chainring Difference by subracting the number of teeth in the smallest chainring from the number of teeth in the largest chainring Determine Maximum Cassette Cog Difference by subtracting the number of teeth on the smallest cassette cog from the number of teeth on the largest cassette cog Determine Total Drivetrain Capacity by adding Maximum Chainring Difference to theMaximum Cassette Cog Difference Record the Maximum Cassette Cog (the number of teeth on the largest Cassette Cog)
For Shimano: SS - Short Cage Road Double - Maximum Cassette Cog is 27 and Total Capacity is 29 GS - Medium Cage MTB/Road Triple - Maximum Cassette Cog is 34(MTB)/27(Road) and Total Capacity is 33(MTB)/37(Road) SGS - Long MTB - Maximum Cassette Cog is 34 and Total Capacity is 45 For SRAM: Short - Maximum Cassette Cog is 34(MTB)/28(Road) and Total Capacity is 32(MTB)/31(Road) Medium - Maximum Cassette Cog is 34 and Total Capacity is 37 Long - Maximum Cassette Cog is 34 and Total Capacity is 45 For Campagnolo: Short - Maximum Cassette Cog is 26 and Total Capacity is 27 Medium - Maximum Cassette Cog is 29 and Total Capacity is 36 Long - Maximum Cassette Cog is 29 and Total Capacity is 39 |