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Gazelle Champion Mondial Semi Race 1974

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Gazelle Champion Mondial Semi Race 1974

Old 06-22-19, 05:14 PM
  #51  
alexnagui
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So I've decided to proceed with facing/milling of the head tube and the fork race seat as well. The reason for cutting the fork race seat is that I had tried to press a Campy NR crown race but it wouldn't go down all the way. There was an annoying gap left and I couldn't press it further. The original crown race is beveled at the bottom while Campy NR is not. Visually, the cut of the fork race seat didn't seem to guarantee a perfect fit. Hence my decision.

I've got the right tools because I wanted to do everything myself. I like having the right tools and being able to do such jobs myself when it's needed. I ended up waiting almost two weeks since I ordered the tools from Germany and they needed to stock some parts from Cyclus Tools.
I followed the instructions from the repair help section on the website of Park Tool. These operations are quite strainghtforward, but you do have to be patient when you proceed. It's important to check the progress after 3-4 turns of the cutter and apply a lot of cutting oil. Especially in my case, I had to repeat facing of the head tube around 7 or 8 times on each side. I suppose that the head tube surfaces were quite out of being parallel. In the end, I've got two nice cuts which are quite an improvement. The fork race seat have become quite decent as well.

As I already mentioned, I opted for Campy NR which I had laying around. It didn't take much time to press and adjust the headset and yeah, it feels smooth as never! Happy with the result, I finally can proceed with the build.



Couldn't press this crown race all the way down



The old cut of the race seat



The new cut of the race seat



The crown race finally seated



Head tube before



Head tube before



Head tube after facing



Headset installed and adjusted, top



Headset installed and adjusted, bottom



Titan stem and dropbars
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Old 06-23-19, 03:39 AM
  #52  
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By the way, out of curiocity I weighted the frameset yesterday before going ahead with the headset. The bare frame with unscrewed Stronglight fixed BB cup weighs 2.2kg. The fork is 0.78kg.
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Old 06-23-19, 08:13 AM
  #53  
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Looking good!
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Old 07-07-19, 07:27 AM
  #54  
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Okay, it took me a lot of time but it's almost done! Took it for a test ride today and noticed a problem with the freewheel/RD. The RD is a Campangolo NR pat. 80, which I bought used and completely overhauled. I've read a lot about Campagnolo derailleurs shifting flaws but despite evrything decided to go for it. Basically, it shiftes fine but the chain doesn't run smoothly on the 3rd and 4th sprockets, and on the 2nd one under load. The chain is new and it does run smoothly on the smallest and largest sprockets. The freewheel I am using is a used Suntour Perfect 5sp. I suspect that most likely the freewheel is the cause of the problem although it doesn't look worn. Will report, once I have tried a different freewheel.



Sorry for a crap picture. Still have to wrap the bars.



Is this Suntour Perfect not that perfect anymore?
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Old 07-13-19, 09:29 AM
  #55  
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It's done! I've installed a cheap Sunrace freewheel and everything runs smoothly now. Wrapped the bars with Newbaum's cotton bar tape. Installed no name bottle cage and pump I took from some project/donor bikes. Got a black Brooks Isle of Wight saddle bag. I was planning to use a Brooks Professional, but one of the rivets around the nose got loose/sheared off so I've swapped it for a B15 which seems to be a bit shorter though. I'll try to replace the rivets on Brooks Professional later on.

Here are some photos.









Modified Cane Creek brake hoods on Weinmann brake levers with thick adjusters. The levers were probably not meant to be used with brake hoods




The top tube is the worst paint- and decal-wise. I might think about a respray in the future

Last edited by alexnagui; 07-13-19 at 09:54 AM. Reason: pictures
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Old 07-13-19, 09:52 AM
  #56  
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Here are the specs:
  • Campagnolo NR derailleurs and shifters
  • Stronglight 49D with chain guard 46/50 rings (original)
  • Campagnolo NR quill pedals with Christophe toe clips and straps
  • Campagnolo NR headset
  • Sunrace 5sp 14-24 freewheel
  • Mafac Racer brakes (original) with Weinmann brake levers
  • Titan Luxe stem with Kimt/Schotte/Maes/Steenbergen dropbars
  • Unknown steel seatpost 27.0 (original)
  • Brooks B15
  • Pelissier high flange hubs with Weinmann Concave A124 rims
  • 28-622 Vredestein tires (original)
  • Weinmann Inoxydable fenders (original)

Last edited by alexnagui; 02-08-20 at 10:47 AM.
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Old 07-13-19, 11:16 AM
  #57  
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Originally Posted by alexnagui View Post
Here are the specs:
  • 28-622 Vredestein tires (original)
  • Weinmann Inoxydable fenders (original)
I was going to ask about those tyres but this explains why I can't find them anymore.
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Old 07-13-19, 12:44 PM
  #58  
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Originally Posted by JaccoW View Post
I was going to ask about those tyres but this explains why I can't find them anymore.
They are a bit cracked but nevertheless look good and have some life in them, I believe. I am gonna see how they gonna behave and keep an eye on them.
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Old 07-13-19, 01:46 PM
  #59  
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Originally Posted by alexnagui View Post
It looks great. I love it. Well done!

WRT the tires: if you're happy with the bike, it's worth investing in a pair of new ones. Weight will go down and - more importantly - the ride will improve. I have Challenge open tubulars (Strada Bianca) on mine, but folding Paselas are a good choice as well.

Nirvana comes at a price, though. Both are around 40 a piece, and they are a b**ch to mount on those Weinmann concave rims when new.
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Old 07-13-19, 03:06 PM
  #60  
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Originally Posted by non-fixie View Post
It looks great. I love it. Well done!

WRT the tires: if you're happy with the bike, it's worth investing in a pair of new ones. Weight will go down and - more importantly - the ride will improve. I have Challenge open tubulars (Strada Bianca) on mine, but folding Paselas are a good choice as well.

Nirvana comes at a price, though. Both are around 40 a piece, and they are a b**ch to mount on those Weinmann concave rims when new.
Thanks!!

Yeah, I know about tires. I am just being cheap and trying to use what I have. But sooner or later I will replace them!
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Old 12-17-19, 12:11 AM
  #61  
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Originally Posted by alexnagui View Post
I realized that the crankset is definitely not a 93, which I thought it was. It should be just a 49R with a chainguard.
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Old 12-23-19, 09:20 AM
  #62  
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Took her for one of the last rides this year today. According to Strava, I've put just a little over 1000 km on her this year.

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Old 12-23-19, 11:33 AM
  #63  
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1,000k? Well done! She looks great.

BTW, I prefer the 49D over the 93 for touring applications. Much more versatile. Just built up a 50/28 crankset for my girl with them.
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Old 12-23-19, 01:59 PM
  #64  
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Originally Posted by non-fixie View Post
1,000k? Well done! She looks great.

BTW, I prefer the 49D over the 93 for touring applications. Much more versatile. Just built up a 50/28 crankset for my girl with them.
Thanks! Yeah, I've seen that picture of the crankarm with the chainrings on the other thread. Beautifully done! Where did you get those chainrings from? I just saw that they are offered at Veloduo, by the way.
I was thinking about some upgrades and changes I might do next year. Changing the gear ratios a bit is one of them, but I have to think it through.
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Old 12-23-19, 04:51 PM
  #65  
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Originally Posted by alexnagui View Post
Thanks! Yeah, I've seen that picture of the crankarm with the chainrings on the other thread. Beautifully done! Where did you get those chainrings from? I just saw that they are offered at Veloduo, by the way.
I was thinking about some upgrades and changes I might do next year. Changing the gear ratios a bit is one of them, but I have to think it through.
I always keep an eye out for "5 vis" stuff at jumbles and boot sales. If the price is right, I buy, whether or not I need anything at that particular moment. Especially the crank arm bolts - the actual "5 vis" - are expensive if you have to buy them new.

BTW, fellow member jonwvara had a batch of 37T chainrings made for the 122 BCD of the 49D (and some other Stronglight and Nervar models) and sells them on his website. Not especially cheap, but well-made and a straight swap for that 46T inner of yours. It enabled me to mount a 93 for this year's L'Eroica:

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Old 12-24-19, 05:29 AM
  #66  
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That's a really nice looking bike, non-fixie
I believe that I've seen it already. Good to know about those chain rings, thanks for the tip!
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Old 12-24-19, 11:59 AM
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Originally Posted by alexnagui View Post
That's a really nice looking bike, non-fixie
I believe that I've seen it already. Good to know about those chain rings, thanks for the tip!
Hah! Yes, that build dates from early 2017, so if you've been paying attention, you will indeed have seen it.

I may have nicer frames and better parts (on paper anyway), but as a total package, this is my best bike, from a UX point of view. I have been trying to improve on it with newer builds, but so far I've failed.

WRT those chainrings I'll paraphrase Henry Royce (whom in turn was paraphrasing Ben Franklin, I believe): the joy of being able to ride uphill while looking good will remain long after the price is forgotten.
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Old 01-20-20, 09:57 AM
  #68  
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Originally Posted by alexnagui View Post
I knew it, this Gazelle came with a bonus!
"De Witte Kat, fits perfectly in your bottom bracket shell"
Definitely gonna keep this one
Apparently this used to be a thing. Found this picture on the local classifieds

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Old 01-20-20, 09:59 AM
  #69  
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Beautiful bike and nice job. I like Gazelles but they are hard to find in the States.
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Old 01-20-20, 11:56 AM
  #70  
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Originally Posted by bikemig View Post
Beautiful bike and nice job. I like Gazelles but they are hard to find in the States.
Thanks! Yeah, it's like Schwinn bikes which are impossible to find here.
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Old 01-20-20, 01:22 PM
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Originally Posted by alexnagui View Post
Thanks! Yeah, it's like Schwinn bikes which are impossible to find here.
Agreed. It might be fun to set up an international swap of frames. I don't think shipping frames is too crazy expensive.

I lived for a year in the Netherlands (near the Veluwe) and wish I'd brought back a Gazelle with me!
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Old 01-20-20, 02:28 PM
  #72  
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Originally Posted by bikemig View Post
Agreed. It might be fun to set up an international swap of frames. I don't think shipping frames is too crazy expensive.

I lived for a year in the Netherlands (near the Veluwe) and wish I'd brought back a Gazelle with me!
Sounds like a good idea! Personally, I don't really need new bikes/projects at the moment, I've got plenty of those for now.

But I'll be happy to help, in case you realize that you can't live without a Gazelle anymore
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Old 01-20-20, 02:41 PM
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Originally Posted by alexnagui View Post
Sounds like a good idea! Personally, I don't really need new bikes/projects at the moment, I've got plenty of those for now.

But I'll be happy to help, in case you realize that you can't live without a Gazelle anymore


Who knows I may take you up on it. First I need to clean out some inventory,
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Old 01-20-20, 03:48 PM
  #74  
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Originally Posted by bikemig View Post
Agreed. It might be fun to set up an international swap of frames. I don't think shipping frames is too crazy expensive.

I lived for a year in the Netherlands (near the Veluwe) and wish I'd brought back a Gazelle with me!
I shipped a whole bike for another user here in its dissasembled state for around 100-130 to the US. So it's not bad.
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Old 01-20-20, 03:54 PM
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Originally Posted by JaccoW View Post
I shipped a whole bike for another user here in its dissasembled state for around 100-130 to the US. So it's not bad.
​​​​​Yeah, I thought about that bike actually, Raleigh, isn't it?
Sounds reasonable to me anyways
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