Classic & Vintage - typical weight of single-wall 27" rims?

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TallRider
10-31-06, 01:43 PM
I'm curious as to the typical weight of single-wall 27" (aluminum) rims that used to be very common on road bikes from the early-80's and prior. Commonly made by Araya, Weinmann. still available some places. Usually 36-hole, though sometimes manufactured with 40 or 48 holes.
The only weight I've been able to find is 628g for the Alex X404. I'm guessing weights don't vary a ton for these sorts of rims, because construction methods are usually the same. Here's the view of the Alex rim, others are similar but often without the curve in the spoke bed.
http://www.unc.edu/~cupery/pics/bike_parts/single-wall.jpg
I'd appreciate any input, even if it's memory fragments. Thanks,

Tim


lotek
10-31-06, 01:53 PM
here ya go (from Damon Rinard's list:
MAKE & MODEL ACTUAL WEIGHTS CLAIMED COMMENTS
Rigida Score Thunder 205 380 al/mg/li MMC; not available
Araya CTL-370 388
Matrix ISO-C II 392,398,405,406,411,412,440
Sun M14A 393, 412, 452 395
Velocity AeroHead 394,395,398,402,404,407,410,414,414
Araya CT-19N 404,417 semi-aero, no eyelets
Sun M13L 409
Mavic Open 4 CD 412,456,456,437,434
Saturae HC19 413,416 box, dbl eyelets
Campagnolo Lambda V 414,415
Matrix Titan II 420
Mavic Reflex 422,427,427,439 410
Velocity Razor 423
Mavic Open Pro 405,424,424,437,440,441,445 420
Sun ME14A 421 20.0 mm deep
Sun Venus 440 25.2 mm deep
Campagnolo Ypsilon V 426 440
Campagnolo Omega V 426,430,467 440 Hardox
Araya CTL-385 428,430 385
Araya VX-400 430 400
Ritchey 450CE 437,463 450 Hybrid rims with eyelets
Araya RS-430 441
Ambrosio Nexxus 442
Mavic MA2 444,451,466,454,481,481 460
Mavic Module E 447 sil box single eyelets
Campagnolo Omega 19 453,457 416
Mavic Open S.U.P. 458,474,479,482,484
Nisi Mixer 459
Ambrosio Excellight 462,469 2001
Torelli silver box 464 dbl eyelets
Campagnolo Omega Strada 468,469 466 box Hardox
Mavic MA40 471,476,482,509,513,513 460
FiR EL25 474,479 silver box double eyelet
Wolber TX Profil 476 20mm deep aero
Araya RT-520 477,492 box, sil, no eyelets. Wider - Hybrid?
Mavic G40 480
Campagnolo Gamma Strada 490,493 box, single eyelets, black ano
Sun M13II 493 14.6 mm deep
Araya TX350 496 no eyelets
Araya PX-35 499 single wall, beveled corners
Wolber Alpine 500 dark box, single eyelets
FiR EU90 488,502,502,502,503,503,503 420 dark semi-box, dbl eyelets
Wolber GTX 503 no eyelets present or needed
Matrix ISO-C 505,522 old style
Wolber 510 box, double eyelets, hard ano
Ambrosio Elite? 512 Durex box single eyelet. Sticker gone.
Matrix Sonic 513
Campagnolo Omicron 515,517 box, double eyelets, black ano
Mavic Module 3CD 524
American Classic 530 carbon fiber V rim
Super Champion Mixte 542,604 Accepts tubulars and clinchers.
Mavic CXP30 549
Mavic CXP14 586,583 same as CXP30 w/o machined sidewalls
Weinmann 516 Concave 569 22mm wide

TallRider
10-31-06, 02:25 PM
Very few of those rims are the type about which I was asking.


roccobike
10-31-06, 06:21 PM
Tim, I'm assuming that you are asking about pure rim weight, no spokes, no hubs. Is that right?
Also, I'm assuming you are talking about the old, 27" stock rims found on many of the old 10 and 12 speeds. Are you including steel or just alloy?
I can get you some weights on complete wheels both steel and alloy without tires, this weekend if that helps.
Thanks

TallRider
10-31-06, 10:48 PM
Thinking specifically about aluminum rims, just rims. I've actually got a NOS Araya of the sort I'm interested in sitting here in my attic, but I don't have a useful means to weigh it.

T-Mar
11-01-06, 06:14 AM
490-625g.

well biked
11-01-06, 07:15 AM
Thinking specifically about aluminum rims, just rims. I've actually got a NOS Araya of the sort I'm interested in sitting here in my attic, but I don't have a useful means to weigh it.

Tim,

Since you've got some rims on hand, you could take one into the post office and have it weighed. You might have to do an ounces to grams conversion, I'm not sure if they could give you a metric weight or not..........I've got eight or ten Arayas and Weinmans in my basement, and a digital fish scale, but the rims are all part of complete wheels-

TallRider
11-01-06, 07:26 AM
Since you've got some rims on hand, you could take one into the post office and have it weighed. You might have to do an ounces to grams conversion, I'm not sure if they could give you a metric weight or not..........I've got eight or ten Arayas and Weinmans in my basement, and a digital fish scale, but the rims are all part of complete wheels-
Good thinking here. I'm taking the NOS Araya with me to campus shortly and will have them weight it at the post office. I'm guessing it's around 500g, incidentally, because hefting it in comparison to a couple of 700c rims I have (Sun M13II, and a Ritchy OCR) it feels similar. Heavier than a Mavic Open Pro, however.

TallRider
11-01-06, 10:16 AM
I had the post office on campus weigh my NOS Araya rim (36-hole, single-wall double-hollow construction), and weighed it twice and both times came up with 1 lb., 1.2 oz. That is 1.075 lb and is equal to 488g. Which is good to know, because it means that I'm not remotely considering buying those 628g rims from Alex.

Also, Velocity Twin Hollow 27" rim (similar construction) is listed at 540g on VelocityUSA website. So the Araya rims that I've got are nice-and-light rims, though by everything I can tell they're nicely made.

TallRider
11-03-06, 09:08 AM
Another update: I took a Sun Mistral rim (single-wall twin hollow, 36-hole, 27", hard-anodized, with eyelets - obviously single eyelets) to the post office today, and it weighed in at 1 lb. 2.2 oz. That's 516g.

T-Mar
11-03-06, 12:35 PM
I had the post office on campus weigh my NOS Araya rim (36-hole, single-wall double-hollow construction), and weighed it twice and both times came up with 1 lb., 1.2 oz. That is 1.075 lb and is equal to 488g. Which is good to know, because it means that I'm not remotely considering buying those 628g rims from Alex.


Pretty good correlation for the low and high end on my 490-625g range.

TallRider
11-03-06, 12:57 PM
Pretty good correlation for the low and high end on my 490-625g range.
Yeah, that was impressive. Where do you come by your knowledge, or what's your range of experience?