IRD subcompact crank option

[eddief]

seems like a decent approach to get the gearing you want:

https://www.bikemania.biz/ird-lobo-11-speed-crankset.html?utm_source=google&utm_medium=cpc&adpos=1o2&scid=scplpMerry-IRD-Lobo-Crankset&sc_intid=Merry-IRD-Lobo-Crankset&gclid=Cj0KCQiA89zvBRDoARIsAOIePbC20083bopB90Z7M8eE ubmJO240U_t3ZmJTyb6Vxefd316f7Tl76SMaAgkbEALw_wcB

[Spaghetti Legs]

Silver one looks nice. Wasn’t clear to me what kind of BB it uses.

[tv_vt]

24mm axle makes me think it takes a Shimano BB.

[8aaron8]

I have a friend who recently bought one. The silver finish is similar to that of lower end Sugino cranks, not the satin silkiness of Sugino's higher end offerings. It uses a 24mm spindle, so lots of BB options available. Kind of a tank weight wise but it does have a great range of chainrings.

[djg21]

Makes a subcompact too. I have one on an old CX bike I use for gravel rides, where my rear derailleur is restricted to a 32t cassette.

[eddief]

but nice.

Makes a subcompact too. I have one on an old CX bike I use for gravel rides, where my rear derailleur is restricted to a 32t cassette.

[AngryScientist]

everyone is hopping on the sub-compact bandwagon, similar to how compact gained acceptance and rapidly became [practically] the norm.

shimano now has the grx "gravel" line, but i fully expect the next iteration of 105 and ultegra to feature subcompact options.

you can even get sub-compact in chorus today, something i thought would never happen, or at least take longer.

i'm all for it.

[mhespenheide]

Now if only there were enough market demand for for 177.5's...

[sg8357]

Back to future, or at least 1954




http://www.disraeligears.co.uk/Site/Simplex_1954_-_catalogue_page_11.html

[Billybob62]

Silver one looks nice. Wasn’t clear to me what kind of BB it uses.

I have one on my gravel bike and brevet bike. Takes good old JIS square tapered bottom bracket. I believe they suggest 118 mm but I've used 115 with plenty of clearance.........Clarence.

[AngryScientist]

I have one on my gravel bike and brevet bike. Takes good old JIS square tapered bottom bracket. I believe they suggest 118 mm but I've used 115 with plenty of clearance.........Clarence.

different crank you're talking about.

[Billybob62]

different crank you're talking about.

Oops - my bad, didn't realize they came out with a new one - it looks similar to the Sugino OX 901 but less expensive.

[unterhausen]

What's the advantage over a GRX?

[eddief]

more options.

What's the advantage over a GRX?

[Pegoready]

What's the advantage over a GRX?

GRX also technically has an outboard chainline from the road norms by a few mm. Shimano recommends a GRX specific front derailleur. I have heard normal road front derailleurs work fine but then again if enough stuff is going against you on a build, the errors can add up to a bike that doesn't shift well.

I would guess the other sub-compact options on the market (Praxis, IRD, FSA, etc.) use a regular chainline.

[eddief]

the IRD supposedly somehow works with both 68 and 73 bottom brackets. wonder how you deal with spacers on the 68 bb?

GRX also technically has an outboard chainline from the road norms by a few mm. Shimano recommends a GRX specific front derailleur. I have heard normal road front derailleurs work fine but then again if enough stuff is going against you on a build, the errors can add up to a bike that doesn't shift well.

I would guess the other sub-compact options on the market (Praxis, IRD, FSA, etc.) use a regular chainline.