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Discussion Starter #1
Looking at the ratios of the Takegawa 5 speed I see it has a much lower 1st gear ratio and
the rest of the trannys gear ratios are pretty tight/close to each other with the final gear
being close to stock 4th.

I think the lower 1st gear ratio would help with some of the loss take off using the 17th and together overall they would balance out.

I think because the ratios are very close to each other there would be no lag between 3rd and 4th getting you
to top speed quicker using the 17t front without lag.

Would like to hear some feedback from anyone who's tried a Takegawa 5 spd tranny and 17t up front.
 

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I don't have the 5 speed but I'm running a 17t with stock rear sprocket, thinking about running a 32 rear soon. I wouldn't say 1st is too tall right now but I probably would if I went to a 32 rear. The 5 speed would be a great idea but you'd better have a 170 or larger bore kit to pull a 17t front efficiently in 5th gear.
 

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How does the 5 speed feel compared to the 4 speed when shifting? Is it a shot error and quicker throw?
 
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Discussion Starter #6
1234.jpg

■ Gear ratio

- Normal mission
1st : 2.500
2nd : 1.550
3rd : 1.150
4th : 0.923

- 5-speed Cross mission
1st : 2.333
2nd : 1.684
3rd : 1.272
4th : 1.040
5th : 0.923


The ratios are much closer. The fact that first is 2.33 helps out with 17T take off going from 3rd to 4th to 5th would also be less lag with the 17T im guessing
Can't wait to see a vid of this 5spd + 17t + 4v 180cc BBK To see how fast to top speed
 

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I'm ordering from webike. I will install it together with the smr dry clutch, since both kit need to split the engine case
wow, thats going to be pretty sick. NICE. curious to see the results.
 

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That's going to be one expensive grom
 

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View attachment 20546

■ Gear ratio

- Normal mission
1st : 2.500
2nd : 1.550
3rd : 1.150
4th : 0.923

- 5-speed Cross mission
1st : 2.333
2nd : 1.684
3rd : 1.272
4th : 1.040
5th : 0.923


The ratios are much closer. The fact that first is 2.33 helps out with 17T take off going from 3rd to 4th to 5th would also be less lag with the 17T im guessing
Can't wait to see a vid of this 5spd + 17t + 4v 180cc BBK To see how fast to top speed
A higher number means a lower gear. According to the above, 1st gear on the 5 speed (2.3) is taller than stock (2.5) so it wouldn't help takeoff with taller gearing. I retract my previous statement that the 5 speed would be a good idea.
 

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would be better if the 5th was around .75 or so. otherwise, seems pretty uselss except for short track racing. maybe.
 

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I was warned that the 5 speed gear is not so durable. But sure a lot of fun. Bring you to top speed faster.
Im gonna stick with 4 gears and smr dry clutch (20% off hehe) for awhile, awaiting feedback from those having 5 speed and bbk in Taiwan. So far so good, but I don't want to risk it with my bike.
 
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Discussion Starter #13
would be better if the 5th was around .75 or so. otherwise, seems pretty uselss except for short track racing. maybe.
I was thinking the same thing. How hard would it be to slip off 1 gear and get 1 custom manufactured gear to slip back on to get to around .75? Also if the 5 speed tranny isn't durable enough how about copying its design using different alloys? titanium? forged steel?

Ex: future users always shred 2nd gear Solution: buy kit add forged steel 2nd gear copy
 

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you actually would need 2 gears.. and at least here in America custom gears are VERY expensive to have made.
 
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