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20" Sew-up Tires & Rims


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18 replies to this topic

#1
dubplatestyle

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Section: 1A

 

 

What started out as a simple quest for a set of tires needed for a 'project', it slowly evolved into a minor obsession where one set became three, three turned into ten, so on & so on. As a result of this madness, I became quite knowledgeable on the various 20” sew-up tires and rims used for BMX racing. I'm sure there's others that I missed, but I'm trying to solely focus on the ones used between '77-85.

 

 

 20" sew-up tires manufactured by Clement are arguably the most difficult to locate, especially in pairs & usable condition. The tread was actually applied to the casing by hand, so if they weren't stored properly, the tread would often dry out faster than the casing and begin to separate.

 

 

Clement 20" Normale (Butyl or Latex Innertubes)

 

Clement_Normale.JPG

 

 

 Clement 20" Campestre (Butyl or Latex Innertubes) Available in Black, Red & Blue.

 

Campestre_Latex.JPG

 

Campestre_Tread.JPG

 

[

 Clement 20" Grifo Neve (Butyl or Latex Innertubes) Available in Black, Red & Blue.

 

Grifo_Neve.JPG

 

Grifo Neve_Tread.JPG

 

Clement_NISI Ad.JPG

 

 

 

 

 

 

 

 


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#2
dubplatestyle

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Section: 1B

 

 

Vittoria 20” Juniores (Early Label)

 

Vittoria_Juniores.JPG

 

 

Vittoria Competition  21-20” Juniores (Later version)

 

Vittoria_Later Version.JPG

 

 

Cycle-Pro Snakebelly  Available in Black, Red, Blue & Yellow.

 

Snakebelly_Black.JPG

 

 

Cycle-Pro Snakebelly III Available in Black only.

 

Snakebelly III.JPG


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#3
dubplatestyle

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Section: 1C

 

 

Comp V Available in Black only.

 

Comp V.JPG

 

 

Panaracer Conquer & Conquer 260 Available in Black & White.

 

Conquer.JPG

 

 

 

Panaracer Sew-up Tire Instructions (1).jpg

 

Panaracer Sew-up Tire Instructions (2).jpg

 

Panaracer Sew-up Tire Instructions (3).jpg

 

Carl Bartley_Harbor-lite.jpg

 

 

 

 

 


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#4
dubplatestyle

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Section: 2A

 

The first BMX bike to ever use a sew-up wheelset was Ronnie West's JMC ('77).

 

First JMC_'77.jpg

 

 

"I bought the rims from Adam Cox’s God-Father. I think he had them for a bike he was building for the land speed record. I honestly don’t know what they were built for in the first place. The main reason for me using them on Ronnie’s bike was that there would be less friction and be much lighter for the little guys."  Jim Melton

 

 

 

Fiamme Rims (24H) Available in Silver only. Most of these will have a blue Fiamme label, but the earlier ones were labeled Cerchio Elmo.

 

24H_Fiamme.JPG

 

 

rim_comparison.jpg

 

Even though they were featured in the 'Rim Comparison' article, I have yet to see a pair of Ambrosio 20” sew-up rims surface.

 

 

NISI Rims (28H, 32H & 36H) Available in Silver, Gold & Hard Anodized.

 

Barts_NISI.JPG

 

28H_NISI.JPG

 

32H_Gold NISI.JPG

 

 

(N.O.S.) NISI rims in purple? 

 

Purple Anodized_NISI.JPG

 

 

 

 

 

 

 

 

 

 

 

 

 


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#5
dubplatestyle

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Section: 2B

 

 

Araya Aero Sew-up Rims (36H) Available in Silver, Red, Blue, Black, Gold & Hard Anodized.

 

Araya_Aero Sew.JPG

 

Araya_Hard Anodized.JPG

 

 

Sun Aero & Non-Aero Rims (28H & 36H) Available in Silver & Hard Anodized.

 

Grifo Neve_Butyl.JPG

 

Unknown_Sun.JPG

 

 

BMXA_Sandy and Hubner.jpg

 

Rolled Sew-up Tire.jpg


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#6
S.Brothers

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Fascinating... thanks so much, Jeff.  This is useful.

 

Mini bmx bikes are really appealing to me from a "trickness" stand point, but as a collector I gravitated towards bikes I can ride, you know what I mean?  Plus the glueing the rim aspect always kind of boggled me because I had no experience and didn't even know where to begin with that sort of thing.

 

Anyway... this is a great contribution. Kudos.



#7
DAN

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Great research! Thanks for posting that.



#8
lboorse2

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Nice -- Sew-ups are a mystery to me.  I've never built a mini or had any need for skinnies.  

 

This is fascinating material.  Thanks for taking the time to dig it all up and document it here. 


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#9
POPS

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First off, Nice job! As a Father of a young 9,year old, (ok so that was 33 years ago) And a collector of Old School BMX, I am familuer with them. I admire you for your dedication in your search.

Nice job. And if you run into a set of red ones, look me up. Cash in hand.

Thanks POPS!!!

 



#10
TrulyOdd

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Great stuff dub. As you know, I'm a big mini fan and have a few various sets of rims and tires too.

#11
John De Bruin

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Plus the glueing the rim aspect always kind of boggled me because I had no experience and didn't even know where to begin with that sort of thing.

 

 

You don't have to glue them for a show bike. 



#12
S.Brothers

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well in that case, sign me up for a lil' hole shot

 



#13
SantaAnaMassachusetts

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I feel so generic with my Araya aeros and Conquers. Awesome breakdown Jeff.

#14
Spur

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Excellent research. We appreciate your effort and continuous contribution of thorough research and data to this site.  Seriously awesome!



#15
brycebarker

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i have a 32 year old ten speed that hasn't had air in the tires for probably 20 years. i was gonna rip the tires off the bike last year when i was refurbishing it. they looked cracked and shitty. i don't know why , but i decided to try and inflate them. they held air, and are still holding most of it now. i guess i am trying to say a beat sew up may still air up nicely. .02.  nice pic of jim duplate:)



#16
TrulyOdd

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here's a reference pic of the panaracer conquer 260 logo

 

panaracer_conquer_260_sew_up_tireBMX.JPG



#17
dubplatestyle

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here's a reference pic of the panaracer conquer 260 logo

 

attachicon.gifpanaracer_conquer_260_sew_up_tireBMX.JPG

 

Patrick, Nice addition! I wonder if there's any difference between the 260 & the 'regular' Conquer, because on the surface they appear to be identical. I noticed the NISI's they're mounted on are serrated too......very cool! 


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#18
TrulyOdd

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the treads do look the same.  i'll look around to see if i have the other logo to compare.  

 

here's the stamping on the NISI's. 

 

NISI_serrated_rims_stamp_sew_up_BMX.JPG

 



#19
dubplatestyle

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Section: 1A-2

 

 

 

Clement Ruota Grifo Neve

 

 

Clement_Ruota_Grifo Neve.JPG

 

('Ruota' is the Italian word for wheel)

 

 


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