From the pictures, it looks like the twist model's top cap uses a longer thread than the standard model, but I could be wrong. I would contact them via their web site and get confirmation. Let us know in this thread once you find out, as this is good information for others who might have the same question.
I can confirm that the topcap for the R89 Twist is exactly the same as the standard R89 topcap. However, when you buy a replacement it comes in a set which includes a baseplate that you will have no use for.
Good information!
Really? You tried it? I asked them specifically whether it fit and they said no.
Yep I tried it and it works fine as both topcap are identical. The only thing you can't do is swap out the baseplate.
Thank you for confirming. I just bought the replacement head. I assume the customer service agent knows nothing about the product and is just reading back information on the product as the description on the site says "not suitable for the twist". I assume that's because the baseplate is useless but it's still valuable for someone like me with a perfectly good razor missing the top.
