New Gravel Frame Ican Graro

[fnkymnky]

I just received all parts for my Graro build in silver grey fade. Plan was to build it up with Ultegra FC-R8100 2x 50/34, but it just won't fit. Without spacers, as recommended by the instructions of the Praxis t47 IB bottom bracket, the chainrings are contacting the frame / chainstay. With spacers on the drive side, the chainrings have enough space, but then the left crank arm can not be put on all the way...
Since I read a few posts about 2x working fine, is it crankset specific or what am I missing?

[Asco]

I just received all parts for my Graro build in silver grey fade. Plan was to build it up with Ultegra FC-R8100 2x 50/34, but it just won't fit. Without spacers, as recommended by the instructions of the Praxis t47 IB bottom bracket, the chainrings are contacting the frame / chainstay. With spacers on the drive side, the chainrings have enough space, but then the left crank arm can not be put on all the way...
Since I read a few posts about 2x working fine, is it crankset specific or what am I missing?

I'm not sure anyone has managed without drive side spacers. I'm running a PES 505 base PM with 50/34 R8000 chainrings, and I had to put in a small spacer on the drive side. Another poster tried a Rotor crankset and made it work also with spacers I think? GRX 48/31 is officially supported - GRX has a wider chainline.

I can't imagine that a 1mm spacer would cause big problems for the crank arm. When you install it, try to look inside the crank arm and see if there is full contact between the splines.

[MartinCZ]

I just received all parts for my Graro build in silver grey fade. Plan was to build it up with Ultegra FC-R8100 2x 50/34, but it just won't fit. Without spacers, as recommended by the instructions of the Praxis t47 IB bottom bracket, the chainrings are contacting the frame / chainstay. With spacers on the drive side, the chainrings have enough space, but then the left crank arm can not be put on all the way...
Since I read a few posts about 2x working fine, is it crankset specific or what am I missing?

I have ROTOR ALDHU cranks with road axle (standard chanline, not gravel one), 50x34 oval chainrings (OD comparable to round 53) and XCADEY gen2 power meter and it fits fine. But I think the power meter itself moves the chainline by ra. 2 mm (probably similar to gravel axle) and it helped me to avoid all such problems. Also another point to take care of is the FD. When you use spacers, you can get out of the range of FD (no limit screws, set-up just over the app). I was on the limit during setting so I made a 2 mm thick spacer and put it under the FD mount. Using the spacer and moving FD more outside also helps the tyre clearance. When FD is mounted normally, 44 mm tyres were very close to FD cable. But this can be also solved by using GRX FD that si designed for gravel chainline. I will post some photos later if you are interested.

[gofasterstripes]

I would contact Ican, it looks like they they fitted a 105 to Graro in the picture.

I fitted a 50-34 with a rotor 3d chainset and power2max PM, that has a chain line of 43.5 so I've added 6mm of spacers although I think I could get away with 4mm.

I was also able to fit 52-36 chainrings but there the height of the front derailleur was a couple of mm to low so I bought one of these adapters to give me the height I need as I intend to use the Graro for road time trials over the summer.

https://www.tradeinn.com/bikeinn/en/fsa-el344-supercompact-adapter/138079651/p?utm_source=google_products&utm_medium=merchant&id_producte=12989710&country=uk&gad_source=1&gclid=EAIaIQobChMIoZbgmMXViwMVSaVQBh2RfxBPEAQYASABEgInmfD_BwE&gclsrc=aw.ds