Standalone 

Not only do those go well together, they truly compliment the triple triangle frame.

Feldman

I agree--I have sold a couple of sets to customers. Very much want one of my own--looking at those things in real time makes my palms sweaty.

EnzoRWD

Nagasawa road?? Very rare! I remember this NOLA relief bike sitting in YJ when I worked there some years ago, thought it was the only road Nagasawa around:

John_DC

This is perhaps a redundant post. I am not skilled at entering posts, but wanted to direct a question to "Frantic" (but I would appreciate help from anyone willing to offer it).
Hello, I stumbled across one of your (frantic) posts from about 1 year ago. You wrote "I have FC-2606, FC-B124, FC-M730 and FC-M620 cranks on pretty much all of my bikes." So you seem to have the expertise that I need, perhaps you can help.
I have an old Stumpjumper (with a "FC-B124") and the left arm crank got a bit lose, it has been tightened but I assume some damage was done when it was loose and I will have to replace it at some point. I wanted to stay ahead of the game so I just bought a "FC-M730".
Will the "FC-M730" be a good replacement for my "FC-B124"?
Thanks, John (jheeb@hotmail.com).

Sixty Fiver

I decided that my XTR group is going on a custom built Arvon mtb which was built around the same period... I still have to build a fork but will mate all that with custom wheels laced to Arvon hubs, an Arvonesque LD stem which I will build and powder to match if I don't go with plating.

This is also an off the hook crank, designed for Raceface it is an SL100 carbon composite and this is an unbranded prototype I got from the builder who is my neighbour, owner of the company that built it, and partner when it comes to doing custom CF work and repair.

When they tested this they had to turn of the machine as they could not get it to fail.



This is the branded version on a Rocky Mountain prototype...



I have also been rolling one of these on my Rocky Mountain for a long time... they were strong, light, stiff and not cheap and when you know what went into building them you would understand why.

FBinNY 

All in all, my favorite remains the old SunTour Spb Pro sets. Excellent strength and rigidity, and a 130bcd. I also like that SunTour made and sold every size ring allowing the maximum user flexibility to set up the gearing of his choice. Long before we had marketing buzzwords like compact drive, we could set up cranks with combinations like 39/47 or whatever to match our riding style, terrain and preferred cadence.

As it is, I still scrap many OEM rings and use old generic rings (both SunTour and others) to make my bikes my own.

79pmooney

There's a lot of applications my favorite cranks are useless for, but where they work, they are very, very good. Sugino 75s. Made in 175 length and very narrow Q-factor so my knees are happy. Stiff enough and strong enough for twice the rider I am. Simple, elegant and accurately made. Round. A joy to ride fixed.

More than one chainring? You're otta luck. 9, 10, 11 speed crank/chain cleaance? I doubt it! Ramps and pins? Nah. But for a simple old-school aluminum track crankset with road crank length options? All-time nice! And square taper - as the OP requested. Sweet fit on a Miche sealed BB.

Ben

vtchuck 

Like Campy NR, SR

Happy to see some love for the Viscount / Lambert "porthole" cranks:



Found these recently.... I think Sugino 75? 175mm, 130 BCD and accept 2 rings:



I'm surprised no one mentioned the TA cranks... lengths up to 180mm (or more?)
and monster chainwheels... favored by Brit time-trial racers in the 60's & 70's

79pmooney

My 75s are 144 BCD, the classic old Campy of my racing days. Smooth outside face of cranks. The "Sugino" is placed-mid crank (and might have said "Sugino 75" before I wore off half the lettering with my shoes).

Ben

RobbieTunes 

I'm there on those. The photos don't do them justice.
The difference in textures on the arms, the smooth but sharp lines.
And they're light as all get out. 52/42, if I remember correctly.

My #2 has also been shown already, the DA7410. For weight and appearance (when new) hard to beat.
However, they have something in common with the 7700: easily marred, decals are fragile.
I always wanted to de-anodize a set and polish them them. Really nice lines.

vtchuck 

I checked and they aren't 75's, but RD-2 thanks

long john

[QUOTE=AZORCH;16460163][/QUthis one is so nice. OTE]

long john

Zeus 2000 gold

Jeff Wills

John, I don't know if Frantic will reply- if you look in the top right of each posting, you'll see the date that posting was, umm..., posted. This thread has been going on for eons.

The Biopace triple FC-B124 was a forged triple crank and possibly the best performance per dollar crank ever. The Deore XT FC-M730 is better finished and a little beefier and, IMO, a very close second. I think the Deore XT is a very good match to your old Stumpjumper.

Sixty Fiver

The Shimano M730 is a wickedly good crank... and easier and cheaper to get than the M900 (XTR).

From a quality and durability standpoint the XT might be impossible to beat and the shorter lived MT60 Deore is also very good.

thenomad

Agreed. I was going to post one too. BCD is funky but I think I still may install mine on a bike. Lightweight and pretty

rccardr 

SR Apex. 86BCD, 48/34, vintage compact. Been on several bikes, always looks great and works nicely!

John_DC

Thanks Jeff!

tarwheel 

I'm looking for a Sugino triple crankset like this for my touring bike, if anyone has one for sale or trade! I've got one already on my other touring bike, and I love it.

long john

this is the coolest set up ever. I love it! What year does this shinny crank belong to?

long john

This is my crank on my commuter bike. I posted it on velo base
nos. My cyclone fd handles it great. It makes the two hills I have in my commute disappear.

pastorbobnlnh 

This model Nervar were standard issue on the later Schwinn Sports Tourers. Mine came off a '75. I believe they were used on the '74s and maybe '73. Originally the ST came with a TA crankset.

You do understand I sanded and polished to gain that finish?

Seabass_First

upvote!

Dfrost 

The widely available Sugino XD-2/500/600 is the same crank, except without the crown emblem.

https://www.universalcycles.com/shop...&category=2637

also available as crank arms without rings:

https://www.universalcycles.com/shop...&category=2220

Metacortex

Schwinn did originally intend to use only TA cranksets on the Sports Tourer, however by the time it was actually introduced in March '71 they anticipated shortages of the TA crankset and lined up Nervar as an alternate as per the following bulletin:



The Sports Tourer was introduced with 36-54T chainrings, however due to customer complaints about shifting they changed to 40-54T chainrings in mid-Nov. '71 (documented in another bulletin). Here are some pics of a rare 36-54T Schwinn spec. Nervar crankset, used only on the Sports Tourer for only part of '71 and only if or when they ran out of TA cranksets:



That version of the Nervar crankset had a 90mm BCD 36T inner ring and 128mm BCD inner/outer ramp/guard rings that were unique to Schwinn. When they changed to 40-54T in Nov. '71 they went to a 128mm BCD inner ring leaving the 90mm BCD holes in the outer ring empty. Those empty holes were eventually deleted from the 54T ring on the Nervar cranksets used by Schwinn during '72 (by '73 they were gone).

While it seems Nervar was initially used on the ST as an alternate in '71 (and is rarely seen on '71 models), from '72 through '74 I believe both TA and Nervar cranksets were used more interchangeably, and finally for '75 the TA crankset was discontinued and only Nervar was used. Schwinn continued to use the Nervar 40-54T crankset exclusively on the '76-'78 Superior, however for that application the outer chainguard was deleted and very early in '76 the style of the crank arms was changed as follows:



I know, I need to get a life...