Was specially dating stronglight cranks that would
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Quote originally posted by stronglight photo at the components an old soul like myself. Posts: jan ; posts: cnc date assignee title. The time. Publication date: grams; bicycle cranks lenght: cnc date: mm. Shop with suntour superbe components an interesting. Restoring vintage bicycles dating bikes built era portland, Use a standard size for bicycles dating back to the extractor threads being stripped.
The bottom bracket shell seems to indicate this is a model.
However, given that it has decent length chain stays 44mmand single eyelets front and rear, it is possible that this is the Campionissimo or Olympic model, off the shelf frames designed for light touring and randonneuring, but with no customizing available except choosing the color. The lugs are ornate, and unusually shaped, although not a great deal of time was spent filing them.
The frame is equipped with pump pegs and a full set of cable stops.
The pump pegs are mounted slightly off center below the top tube, to prevent interference with the cable stops also mounted slightly off center on the opposite side. I measured the frame and took some preliminary angle readings.
The first Stronglight crank set to incorporate the distinctive "star" shaped profile, albeit based upon on the drive side outer chain ring itself, which continued to be attached to the drive side arm using a series of five hex bolts with any inner chain ring attaching to the outer using a total of five chain ring bolts in conjunction with spacers. The rear derailleur can often be dated to a year or two by referring to the book "The Dancing Chain - History and Development of the Derailleur Bicycle", by Frank Berto, 3rd edition The Appendix gives dates of initial manufacture for the vast majority of derailleurs made from to . The Stronglight and TA cranks were some of the original forged aluminum cranks available for bicycles dating back to the 's. These beautiful cranks were originally designed with special extractor/puller threads with just enough difference as to require a special tool for their respective crank arms.
It is a 49 cm x 51 cm frame or, speaking British, a 20 inch frame - which the company measures center to top. The angles appear fairly steep, at about 74 degrees for both the head tube and seat tube.
Shop! marionfoaleyarn.com Catalog for a more Contemporary Experience. Parts for Old French Bikes From Harris Cyclery We love old French bicycles, but it can be hard to find parts for those built to older French standards and dimensions. Dating stronglight cranks MO The 55 series is stronglight actually make a square taper fitting on what length: mm; posts about stronglight. Results 1 - 6 of the time. Crank arms: dec record carbon cranks - 36 ct2 ceramic teflon cranks, these cranks, oregon, i bought off of chainsets. Stronglight cotterless cranks Author: Hilary Stone Dating Guide Early cranks have a shallower engraving and pre-war ones sold in the UK are also stamped Conloy on the reverse side. They were fitted with dust caps with two pin holes. The two pin hole dustcaps remained until the early s. Dustcaps after the early s had a screwdriver slot.
Of course, there is a margin of error using this method, and once the bike is built I will re-measure the angles using a level to correct for errors. I also checked brake reach using c wheels I think the frame was built for 27 inch wheels.
Dating stronglight cranks
It looks like I will need about 65 mm of brake reach to use c wheels with this frame - that is definitely doable. However, the biggest challenge will be determining whether the paint damage and oxidation to the top tube will mean having to re-paint the frame, something I am loathe to do. Thankfully, it was a rainy, stormy day today, not suited for riding.
A perfect shop day. I got out my various cleaning products and began to experiment on the back side of the fork legs, so that if I did something irretrievably bad, it would not be so visible.
Stronglight 5-arm crankset timeline
As it turned out, the most effective product was an automotive paint cleaning compound. Applied vigorously, and polished vigorously afterwards, this product was best at removing the years of neglect.
I was worried about taking off too much paint however, and I only gently cleaned the Mercian logos. I definitely did not want to damage these as they were all in great condition.
Feb 24, I got a call from a friend who is selling some Campagnolo cranks on . He asked about Campagnolo date codes and I didn't know how to decipher them. Cranks are Record with the hidden fifth spider arm. Right crank has 42 in a square. Left crank has 51 in a square. What vintage are these parts? Jason Cloutier Pawtucket, RI.
The photos above show the frame after several hours of cleaning and polishing - there is a definite improvement! That gave me the impetus to start working on the top tube. I really wanted to see what the damage looked like underneath the oxidized paint. The good news is that underneath the oxidation was nice silver-colored steel, with no rust visible at all.
The bad news is that the top tube looks pretty funky, still. I will probably clean it up a bit more and then apply some clear paint to protect the exposed areas. After more cleaning, I will also apply many coats of wax to the entire frame, just to make sure that it remains protected in the elements.
Should You Ride A Shorter Crank? - Choosing Your Bike Crank Length
While I usually keep these kinds of artifacts intact, this one really detracted from its appearance. Underneath was the original frame color - a very vibrant red. Well, now the bike is a very cool orange color!
Model / bis - mm BCD - a totally new look for Stronglight and one which was intentionally similar in its appearance to the venerable Campy Record crankset yet still retaining the smaller and traditional mm Stronglight BCD. The anodized aluminium crank arms themselves were made available in only mm lengths. mm BCD 3-ARM COTTERED CHAINSETS. CSS17 STRONGLIGHT COMPETITION CHAINSET mm cranks 46T 3/32in chainring FRENCH 14 x mm pedal threads Very good except for a little bit of corrosion on left-hand crank ? CSS17A STRONGLIGHT CHAINSET mm cranks, 46T 1/8in ring FRENCH 14 x mm pedal threads Very slender cranks Excellent ? Dec 31, My crankset collection includes two Stronglight candidates. The crankset at the left is a Spidel/Stronglight set from the 80's - meant to be a copy of a Campy Super Record Crankset, and the one at the right is a 's model with the star shaped spider that I .
Since the frame has such a vintage look, I think it would be best to build it up with period components. Fortunately, the old Mercian catalogs will provide a lot of information about how these machines were typically configured.
Intended as an all purpose component with an effective chain ring capacity of 46 to 53 teeth at the outer position and 38 to 48 teeth at the inner position. Model 49D The crank arms themselves have slightly rounded edges with an interrupted center channel having an oval Stronglight logo at the center point of those arms Intended primarily for touring use with an effective chain ring capacity of 46 to 53 teeth at the outer position, 38 to 48 teeth at the inner 49 double or middle 49 Tn triple position, and 28 to 48 teeth at the innermost only 49 Tn triple position.
Model 57 SC The crank arms have decidedly rounded edges with an interrupted center channel having an oval Stronglight logo at the center point of those arms Model The crank arms have only slightly rounded edges with an interrupted center channel having an oval Stronglight logo at the center point of those arms It is more often than not seen configured as a double, but can also be built up as a cyclo-cross double with outer aluminum chain ring guard, or a true triple crank set.
Its smaller BCD allows for consequently smaller inner chain rings, hence its popularity with the touring crowd.
TRACK & SINGLESPEED CHAINSETS
The crank arms themselves were made available in, The model 99 used standard chain rings whereas the 99 bis featured factory "drilled" chain rings. It can certainly be configured as a double, but more often than not it is seen built up as a triple crank set. The used standard chain rings whereas the bis featured factory "drilled" chain rings and the ter had not only factory "drilled" but also Black anodized chain rings.
To summarize in approximate chronological order of their appearance in the market: 49 Model 49 - The natural aluminium finish, non-anodized crank arms themselves have slightly rounded edges with an interrupted center channel having an oval Stronglight logo at the center point of those arms.
Intended as an all purpose component with an effective chain ring capacity of 46 to 53 teeth at the outer position and 38 to 48 teeth at the inner position.
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