The picture on the black ring shows that it is 130 BCD. If I recall correctly, back when IRO had these rebranded they came in 130BCD as well. I'm just gonna take a guess that RSC1 refers specifically to the shape of the crank arm and then people can get it ordered however; single, double, 130bcd, 144bcd, etc.

Hey Scrod, which cranksets are better for somewhat bumpy roads? Omniums of DD75? Plus how does crankset length work? Is it suppose to be chosen based on your height? If so I'm about 6'1". Thanks in advanced! Hope your having an awesome day!

I'm a little confused as to why a road being bumpy would be any sort of deciding factor when choosing a crankset.

Crank arm length isn't just based on height. Because pedal strike while cornering is an issue on track bikes because the pedals are always rotating when the bike is moving, it's common practice to use shorter cranks than you would on a road bike. Without knowing any other details about how long your legs are, I would probably recommend 170mm for someone being 6'1".

Hi scrod I have sram omnium crankset. I would like to buy a new chainring 46t. I looked at retro but not sure which chainrings are compatible with sram omnium crankset. Please help. Thank you

Any 144bcd chainring will work on Omniums.

thank you

2 question re: the Miche track cog/carrier

Have you heard any complaints about this system?

To change the cog, you just take the lockring off, pull the cog off the carrier, and then replace?

Angie has been using it for a couple of years now and I've never heard her complain...

It's that easy!

Sweet. Thanks!

I hope Scrod won't mind if I chime in here, but I've also been using the Miche carrier system w/o any problems. I just have one caveat, and that it is very important to get the carrier tight enough that it cannot unscrew under any circumstances and becomes a permanent part of the hub. The sole purpose of the lockring should be to keep the cog from slipping off the carrier and nothing more. To this end I've used red loctite on the carrier and tightened it on the bike by standing on the forward pedal with the front wheel pressed against a wall. So, you shouldn't use this system if you plan in the future to use your hub with a conventional threaded cog.

Hey Scrod,

What is Super Zen ?

The Super Zen has what Sugino calls an S3 Cubic Super Smooth Surface and is bead blasted & electrochemical dipped (making them cost about 3 times more than a Zen). They're not easily available in the US.

From Sugino's site:

The S3 chainring is rigid and has less friction compared with the anodized chainring. The S3 chainring can minimize the chain driving resistance and achieve more effective power transmission.The S3 chainring will offer amazing performances at track races wherein the winner is often decided by hundredths of a second. As the abrasion speed is about a tenth of the anodized one, smooth wheeling can be maintained for a longer period of time.

Well, IDK about that Super Zen, but I can tell you that the regular Zen on the 75 DD crankset you sold me has got to be the smoothest and roundest chainring I've ever owned. Even though the gearing was the same, my Pista Concept felt like it was self-propelled with that thing.

Right? Every Sugino 75 or Zen chainring I've ever used or seen has been extremely precise and smooth.

I've got a bunch of regular 75 chainrings, which are very round and smooth, but the Zen seems to be even better.

Hey man,

Phil Wood sells a 22T rear cog. I know you don't stock them. How about getting me one on special order?

Like everyone else on the planet, I don't work 24/7. Please contact the shop via e-mail if you'd like to inquire about a special order.

Thanks!

You guys need to stop. I can't afford any of that stuff! :lol:

Just eat a lot of pasta and save your pennies. :)

Will either Nitto seatpost S65 or Dynamic S626 match up with the Pearl Stem's finish.
Thanks

Not really, but the S-83 will.

Anything else I dislike that much setback!!!

Has the quality of mavic wheels and rims suffered since they started to do apparel?

Ellipses and Open Pros pass through the shop regularly and from what I've seen they've stayed consistent.

We've got some silver Nitto NJ-SP72 Jaguar seatposts in stock having a similar polished finish but they have 22mm setback and retail for $155.

Had a set of Open Pro rims come in box was truer than the rims.

Hey Scrod,

What is the diameter of the top tube and down tube on the Heavy Pedal Axiom?

39.5mm top tube, 45mm down tube by my caliper.

Was that dead squirrel pin in relation to my fondness of instagraming dead things? Because i ****ING love it :thumb:

Of course! That was all Angie's idea. :lol: