11-09-2015, 04:25 AM
I just verified with my local Honda parts and service.
2014 Transmission Gears are as follows:
M is main, C is Countershaft
M1-12, M2-17, M3-23, M4-25, M5-27, M6-28
C1-37, C2-33, C3-34, C4-31, C5-29, C6-27
This agrees with the transmission numbers/ratios in the original posted. So it still does not explain why 3250 is possible. If I had to guess, I would say that more than 1 gear is involved at times between the crankshaft and the first sprocket. For the purpose of this discussion, it is a moot point, because all that is affected my upcoming mod is the final sprocket ratio. The 2013 is a 18/39 & the 2014 is a 18/40. So by changing the 2013 to a 19/35 ratio, I will be reducing engine rpms equally in every gear by 15%. This will enable a cruise rpm of 3400 in 5th at 70mph.
I hope this eases the head pain some may be feeling - after all this is a technical thread. Even I get headaches when I overwork my cerebrum. It still pains me as to exactly how 3250 is being made possible.
Thanks Chip. I spoke to 7th Gear Designs about doing this in steel for me and I am just waiting for him to get situated in his new facility. I manufacture PTO pulleys in Aluminum for fan belts, but for this steel is the only way to go with a chain.
Your feedback is what I have been looking for. I am going to break the chain & remove links so that it is as close to original as possible regarding for & aft adjustment & alignment. I asked (not on this thread) and I was told 35 is the smallest without hitting anything. If anything gets hit, I will have no choice but to do a 37. Without doing the mod and finding out too late, is there a way to ensure nothing will hit?
2014 Transmission Gears are as follows:
M is main, C is Countershaft
M1-12, M2-17, M3-23, M4-25, M5-27, M6-28
C1-37, C2-33, C3-34, C4-31, C5-29, C6-27
This agrees with the transmission numbers/ratios in the original posted. So it still does not explain why 3250 is possible. If I had to guess, I would say that more than 1 gear is involved at times between the crankshaft and the first sprocket. For the purpose of this discussion, it is a moot point, because all that is affected my upcoming mod is the final sprocket ratio. The 2013 is a 18/39 & the 2014 is a 18/40. So by changing the 2013 to a 19/35 ratio, I will be reducing engine rpms equally in every gear by 15%. This will enable a cruise rpm of 3400 in 5th at 70mph.
I hope this eases the head pain some may be feeling - after all this is a technical thread. Even I get headaches when I overwork my cerebrum. It still pains me as to exactly how 3250 is being made possible.
(11-09-2015, 03:51 AM)ChipBeck_imp Wrote: Rbike,
My 2013 CB11 has a 19 tooth front and 37 tooth rear and it took my 70mph rpm from 4000 down to 3600 and made riding much more pleasurable. The speed limit here in AZ is 75mph. Starting out in 1st gear is no problem even when two up. If you go all the way down to a 35 tooth rear you will need to break and shorten your link-less chain and you'll need to see how much the chain drags on it's slider. Taking a link out of the chain is not necessary with the 19/37 combination. One other item to look for. The stock CB11 rear sprocket is steel and very durable. Almost all aftermarket sprockets are made of aluminum and wear out much faster. "7th Gear Designs" has made custom 37 tooth steel sprockets for several members here and they are a work of art with slotted lightning holes. They are the company to contact to make you a steel rear sprocket.
When you finish let us know how it works out. All the best bro.
Chip
Thanks Chip. I spoke to 7th Gear Designs about doing this in steel for me and I am just waiting for him to get situated in his new facility. I manufacture PTO pulleys in Aluminum for fan belts, but for this steel is the only way to go with a chain.
Your feedback is what I have been looking for. I am going to break the chain & remove links so that it is as close to original as possible regarding for & aft adjustment & alignment. I asked (not on this thread) and I was told 35 is the smallest without hitting anything. If anything gets hit, I will have no choice but to do a 37. Without doing the mod and finding out too late, is there a way to ensure nothing will hit?