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Newer R1s are 108mm spacing so thats a no.
 
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european stuff is 100mm. pretty much all the japanese stuff is 108mm except i think like 07-14 r1's were 120mm and i thought there was a gsxr but i could be wrong. also the GP4RX are very heavy, they look like the higher end callipers but they are not. the GP4-RS is actually an affordable and great performing caliper. modelled after the M50 but it has some upgrades and is 108mm
 

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Discussion Starter · #5 ·
european stuff is 100mm. pretty much all the japanese stuff is 108mm except i think like 07-14 r1's were 120mm and i thought there was a gsxr but i could be wrong. also the GP4RX are very heavy, they look like the higher end callipers but they are not. the GP4-RS is actually an affordable and great performing caliper. modelled after the M50 but it has some upgrades and is 108mm
Is it because of the RX is 2 piece and the RS is 1 piece to minimize caliper flex?
 

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The RX is 2 piece with 2 giant steel bolts holding it together and I want to say they are a Bit bigger to accommodate the bolts having to have space to thread into it. The RS being one helps a lot is just doesn't have that shiny nickel coating to make it look expensive lol
 

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Discussion Starter · #7 ·
The RX is 2 piece with 2 giant steel bolts holding it together and I want to say they are a Bit bigger to accommodate the bolts having to have space to thread into it. The RS being one helps a lot is just doesn't have that shiny nickel coating to make it look expensive lol
Lmao! That bling. Aright I’ll get the RS. Thank you!
 

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I have the RX on my R1M and after feeling em I put the RS onto my track bike. The RX look great and don't get me wrong they don't perform badly or anything but on the inside I feel like such a poser know I added weight to my bike to look cool essentially lol.
 
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