Choose adapter 160mm -> 180mm disc
06-05-23, 07:15 AM
#1
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Choose adapter 160mm -> 180mm disc
I'm planning to replace the 160mm front disc on my 2009 BMC Team Elite 02 MTB by a 180mm rotor, but I'm quite puzzled by the number of possible adapters.
The calipers are part of a combined brake/shifter Shimano M 765 and a rough measurement of the space between the bolts is 70mm
The fork is a Manitou Black Comp 125mm
Unfortunately, I can't add a picture on this forum yet.
Could anyone let me know the model of adapter I need, for example on AE pages such as 4000389793602 or 1005003707892599 or 1005004369743094 ?
Thanks
The calipers are part of a combined brake/shifter Shimano M 765 and a rough measurement of the space between the bolts is 70mm
The fork is a Manitou Black Comp 125mm
Unfortunately, I can't add a picture on this forum yet.
Could anyone let me know the model of adapter I need, for example on AE pages such as 4000389793602 or 1005003707892599 or 1005004369743094 ?
Thanks
06-05-23, 02:14 PM
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here.. search this on Ebay...oh, and the "bolt" distance for post mounts is 74mm... it's the industry standard.
Formula 180mm Front / 160mm Rear I.S. to Post Mount Bike Disc Brake Adapter NEW
06-05-23, 02:45 PM
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I've been through this, went from 160 to 180 to 203mm on IS brake mounts. I recommend Shimano adapters - I bought some no-name adapters on ebay and the front was too tight without washers to add distance between calipers and adapter. I bought the correct Shimano adapter and everything fit correctly.
I'm pretty sure this is the one you want (assuming IS mount frame interface):
https://www.jensonusa.com/Shimano-18...-Brake-Adaptor
Note the "F" for "front" in the part id - the rear 180mm adapter is different.
I'm pretty sure this is the one you want (assuming IS mount frame interface):
https://www.jensonusa.com/Shimano-18...-Brake-Adaptor
Note the "F" for "front" in the part id - the rear 180mm adapter is different.
I'm planning to replace the 160mm front disc on my 2009 BMC Team Elite 02 MTB by a 180mm rotor, but I'm quite puzzled by the number of possible adapters.
The calipers are part of a combined brake/shifter Shimano M 765 and a rough measurement of the space between the bolts is 70mm
The fork is a Manitou Black Comp 125mm
Unfortunately, I can't add a picture on this forum yet.
Could anyone let me know the model of adapter I need, for example on AE pages such as 4000389793602 or 1005003707892599 or 1005004369743094 ?
Thanks
The calipers are part of a combined brake/shifter Shimano M 765 and a rough measurement of the space between the bolts is 70mm
The fork is a Manitou Black Comp 125mm
Unfortunately, I can't add a picture on this forum yet.
Could anyone let me know the model of adapter I need, for example on AE pages such as 4000389793602 or 1005003707892599 or 1005004369743094 ?
Thanks
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06-05-23, 08:22 PM
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Manitou Blacks have post mounts not IS mounts, you need the SM-MA-F180P/P2 adapter.
https://www.jensonusa.com/Shimano-F1...-Brake-Adaptor
https://www.jensonusa.com/Shimano-F1...-Brake-Adaptor
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06-05-23, 10:02 PM
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Manitou Blacks have post mounts not IS mounts, you need the SM-MA-F180P/P2 adapter.
https://www.jensonusa.com/Shimano-F1...-Brake-Adaptor
https://www.jensonusa.com/Shimano-F1...-Brake-Adaptor
liking the spacer.... and the half pivot could be to allow for the bias on the spacer... i'll stick to the tried and true BOTH HALVES and No spacer method.... now, if i was going from 160 to 203... add the correct spacer andpivot as needed.... I've never bothered going from 160 to 180mm... and the two bikes i upped to 203 were side mount forks....
Last edited by maddog34; 06-05-23 at 10:08 PM.
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06-06-23, 12:29 AM
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Why would there only be one half of that pivot system shown on that drawing? and i've also never seen that spacer on a bike... ever. Will wonders never cease... Still baffled by the use of 1/2 of a pivot mount... weird and useless. Some engineer is probably very proud of that drawing... half a pivot mount... hmmmm....... liking the spacer.... and the half pivot could be to allow for the bias on the spacer...I'm sure the engineer would have an as useless reason for that totally useless addition....
liking the spacer.... and the half pivot could be to allow for the bias on the spacer...I'm sure the engineer would have an as useless reason for that totally useless addition....The reason spherical washers are used....
