[StunZeeD]

I have a 575 running XTR cranks, there is a very small spacer in the BB now so not sure I can afford adding a ISCG adapter. I want to run dual ring up front what options do I have?

The DS, DRS, Heim?

 

[PhilipW]

I have a 575 running XTR cranks, there is a very small spacer in the BB now so not sure I can afford adding a ISCG adapter. I want to run dual ring up front what options do I have?

The DS, DRS, Heim?

Hi Stunz,
Essentially, you can run any of those three. Physically there is no space to fit a dual ring system and an ISCG adapter in a traditional setup like yours. With no ISCG tabs, the simplest way to mount the guide would be BottomBracket mount. The DS, DRS and Heim2 all come in a BB mount configuration (and the DRS has traditionally always been ISCG-OLD/BB Mount compatible).

Personally, I would opt for the new Heim2 BB mount guide...150g for the entire setup with Turbocharger, and the roller uses our new Tech3 roller material. Any of the guides will replace that 2.5mm driveside BB spacer.

Cheers,
philip @ e*thirteen/the Hive

 

[Nick]

FWIW, I just installed a Heim (from an STS) on my RFX and I'm very pleased. Super easy to install and setup, very quiet, and works perfectly. For the price its really hard to beat, especially if you have a Supercharger or other bash already.