I got the Takegawa BIg Brake kit from Webike. I’m a huge fan of braking power. After fitted, immediately found the rotor caused drastic pulsing. Front wheel shuddering was unpleasant. The rotor wasn’t flat. The uneven wear, even after >10 miles, was noticeable on the rotor. Working with Webike for a return/replacement currently.
Update on my return/replace situation…
Webike has been great. I wish the response from Takegawa was as impressive:
From Webike customer support:
We apologize for the delay in contacting you.
We received the following response from the manufacturer.
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First, I checked the image you sent me, and the range of numerical values in the image is within the standard range, so there is no problem.
In addition, we had another customer who owns the same product (same production lot) inspect it, and the result of the inspection was that there was no problem with the product itself, and no abnormalities were found.
However, regarding the content that we have received from our customers, we are told that due to the characteristics of the product, the braking force has been significantly improved compared to the normal product, so it is expected that some vibration will occur.
The ABS system is more likely to intervene when the brakes are applied strongly, so it is possible that this may be a factor. (If off-road tires are installed, ABS device intervention during braking seems to occur particularly frequently.)
This may not be a satisfactory answer, but I will give it to you.
In addition, if you experience any problems or feel it is dangerous, we recommend that you stop using it.
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This is the answer from the manufacturer.
So, according to Takegawa, vibration is just part of performance.
Anyway, Webike is accepting a return for refund, so kudos to them. It is absolutely appreciated.
As an interesting alternate solution, (if you are comfortable doing the modification! If not, please disregard!) Also, obviously, you need to have the “oversize” caliper bracket. I found that the “oversize“ rotor (270mm) for a Kawasaki KX250f/450f will get the job done with a slight modification. The mounting holes are ~9mm in dia but we need 10mm. The loss needs to be on the interior part of the hole (closest to the axle). I ground out the holes (it is a pretty small amount) and have mounted the rotor. Smooth as a baby’s butt! And, as a bonus, the rotor cost me $38 on eBay.
https://www.ebay.com/itm/1943470306...1wZZi_uTHa&var=&widget_ver=artemis&media=COPY