Singlespeed & Fixed Gear - Sugino RD Cranks

Apparantly the Sugino RD crank is sold with a 48t chainring. Anyone know if a 42t ring is available? I have emailed this question to both Harris Cyclery and BensBike and neither returned my email. Maybe it's just a ridiculously stupid question not worth answering? :(

Thanks

it has a 130BCD (http://sheldonbrown.com/harris/fixed.html#cranks), so find a 130BCD ring (http://sheldonbrown.com/harris/chainrings/130.html) and there you have it.

note: the 165mm length of these cranks is referring to where the hole on the crankarm was drilled for the pedal, not the true length.

all crank lengths refer to where they're drilled and not their total length. yes i know what you're getting at with the rd but it's kinda irrelevant. there was some wild talk going around this forum that they were "redrilled" or some such nonsense (hey maybe rd stands for re drilled :rolleyes: ), and also that they weren't actually 165mm, but they aren't the former and they are the latter. presumably sugino just use one casting for all the crank lengths across this budget range. so if having a half inch of extra metal past the pedal axle bothers you go for something more pricy, though why it should i've no idea

so if having a half inch of extra metal past the pedal axle bothers you go for something more pricy, though why it should i've no idea
because it does.

Look at other cranks labeled as 165mm - and let me know how many of them sport extra metal below the pedal hole like the RDs. pretty ****ing stupid to have extra metal hanging below the pedal when in fact, most people ride 165mm on the street with the HOPE that the crank will not strike the pavement when cornering. This also applies on steeper banked tracks (the one at Northbrook people usually run 167.5-170 due to shallower banks and longer flats). But then again, some people are happy settling for less.

and if you are in need of a track crankset and do not care, check out Businesscycles.com - they have the Sugino RD for sale, and well, as you said - it is "165mm." enjoy

1. pedal would obviously strike before the crank, even with a half-inch of extra metal
2. i don't want an rd. i took one off my bike, but it doesn't change my point

damn - I need more coffee. And an editor. Point corrected.

One thing I did forget to mention: some track frame's chainstays will not tolerate the additional metal (saw this on a smaller Waterford) so that may be problematic - case-by-case though. But on some trashbin gutterfix, should be fine.

Another option: get a Miche set of cranks. I know John also had Stronglights for pretty cheap too.

The Stronglights are a nice, affordable choice. They take 130 BCD too, they seem pretty sturdy and stiff and the price is more than the RD's but it'd be worth it in the long run.

I didn't notice that they were drilled higher on the crank arm rather than made shorter. Im currently building a Kogswell Model G and wanted to go with 165mm because of the added clearance.

Why did you remove the Sugino crank? Is it not a decent crank?

Thanks for the input.

']But on some trashbin gutterfix, should be fine.

MEOW! http://www.pogmania.com/junk/catastronaut0xn.jpg

http://dcc.absenter.org/foto/misc/170w165hole.jpg

wanted to go with 165mm because of the added clearance.
eddie has a point: the pedal hole is still drilled to a 165mm length and the pedal will scrub you off before the crank arm will. So for a 165mm budget crank, the SuginoRDs are fine and there won't be any clearance issues.

I didn't notice that they were drilled higher on the crank arm rather than made shorter. Im currently building a Kogswell Model G and wanted to go with 165mm because of the added clearance.

Why did you remove the Sugino crank? Is it not a decent crank?

Thanks for the input.


well i didn't actually remove it as such. i traded my 05 pista frame for an 04 and the only thing i couldn't remove myself was the bb, so i ended up leaving the sugino on my old one and keeping the truvativ on his. the sugino was far nicer, imo, but it bothered me that you had to run the ring on the inside of the spider to get ideal chainline. i just felt that i wanted, and want, a dedicated single chainring crankset, not a double.

i don't think that there's anything "wrong" with the sugino rd, for the price (65 bones or so), other than the dreaded "crank strike"!!!! :p

It is, as illustrated above (when I had an RD and an RT), purely an aesthetic thing rather than a performance thing. As already noted, Sugino drills these to keep production cheap.

Marcus at Yojimbo's showed me a crank that was 170 or 165 depending on where they drilled the hole -- it was also stamped with the length but only where the other hole was, therefore if it was 165, the hole would drill out the bit that had the 170 stamped and keep the 165 and vice versa. There are also cranks that are 175 in length that get drilled for the 165, 170 and 175.

other than the dreaded "crank strike"!!!! :p
yeah, I should start using pedals I guess

Unless you're unwilling to spend more money I'd vote you get a better crankset. I got the RD's when I originally built up my surly frame and was fairly disappointed from the start. The chainring on the inside was annoying, they were loud even with good chain line, and I broke the crap out of them after a few months (there must have been a thin crack I didn't notice for some time because I broke two spider arms at once when I was drunk and riding home from downtown Oakland one night - and not in a crash, just from pedaling). I replaced them with Sugino 75's and could not be happier with the improvement. I suppose you don't have to make quite that much of a leap in price, but good cranks feel great - way more of a difference than I expected - and, IMO, the rd's are crap.

']it has a 130BCD (http://sheldonbrown.com/harris/fixed.html#cranks), so find a 130BCD ring (http://sheldonbrown.com/harris/chainrings/130.html) and there you have it.

note: the 165mm length of these cranks is referring to where the hole on the crankarm was drilled for the pedal, not the true length.


true -

"casting" one size crankset to "fit" all

another example of corporate "cost cutting"