The Pedals, The Crank, and Some Drivetrain Forensics | Tech Tuesday

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The old race bike rebuild continues! This time it's the pedals and everything in-between. As he rebuilds the old drivetrain, Calvin takes note of some witness marks and configurations that can give us a hint as to what kind of rider this old warhorse had.
For other videos featuring this old racing bike, see this playlist:
• The Life of a Race Bike
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Опубликовано:

21 авг 2023

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Комментарии : 103

@W0lfytzu 10 месяцев назад

The friction shifters position indicates that the big front chainring is selected in combination with the smallest cog in the back. 😉

@frankda4 2 месяца назад

But why do you want to take a photo with big front small back selected?

@W0lfytzu 2 месяца назад

@@frankda4 to indicate something wrong for the most part. And get people's attention with the photo. He explains in the video, why you shouldn't ride like this, but if you are an experienced bicycle rider, you already know. You can do it, but it's not recomended.

@ForrestNH 10 месяцев назад

A fantastic video. It feels like you're sitting next to Calvin in the shop while he explains and demonstrates the repair.

@senyaw53 10 месяцев назад

Full Campag group set, that was a classy bike in its day. Worth the rebuild.

@lindajesse8250 11 месяцев назад

A great approach to bicycle maintenance and understanding. Makes things fun. Thank you sir.

@BillSmithPerson 10 месяцев назад

At last I know the optimal shift lever positions for warhorse bike photography. My life is complete.

@dankerman321 10 месяцев назад

Thanks Calvin.... those clip pedals took me back to my younger days.

@Theoddert 10 месяцев назад

Just imagining walking in on Kalvin fixing your bike and seeing him reverse engineering your entire life story from clues on your bike like Sherlock Holmes "...and here we have yet more evidence this user preffers dark roast coffee but- oh what's this, clearly their relationship with their stepmother needs some work..."

@UWMailing 10 месяцев назад

Those Binda toe straps were the ones to have back in the day. Nice touch.

@brentnearhood8874 10 месяцев назад

It puts the chain on the big chainring and small cog, making for a better photo.🚲

@khazza930 10 месяцев назад

YES!! I was looking for this comment!

@RJ_Groot 10 месяцев назад

I haven't used friction shifters for as long as I can remember, but I'm guessing that will give you biggie small or top gear.

@rcdogmanduh4440 10 месяцев назад

Gosh the 70's were great,my Fleetwing 10 speed was a dream! Wore sneakers with peddle cages, toes always numb!

@billkallas1762 10 месяцев назад

I still have my old Duegi 101's.......Here is a tip. To reduce the pressure of the strap on your foot, go with double straps. Each one has to be only half as tight. The second strap goes through the front slot in the pedal, and over the front of the toe clip. Tip#2 Give the strap a twist under the pedal, so it won't slip. Tip#3 Use White Binda straps to increase the "cool factor". Time for a new Fixed Cup......

@PrzemyslawSliwinski 10 месяцев назад

As far I recall it (it's about 40 years after all!), the trick was to tighten a cap a bit more because tightening the ring shifts the cap slightly outward.

@MxCraven 10 месяцев назад

Fantastic. Thank you for calming me before I go and brave riding with a faster group than I'm used to (and can likely keep up with)

@lawrencelibby3607 10 месяцев назад

Dust caps keep the threads clean for the crank extractor. Since seeing some munged-up threads I am a dust cap convert. (Love those brazed-on cable guides.)

@zygmuntthecacaokakistocrat6589 10 месяцев назад

Unless they're seized in, and you have to hammer them out, and the threads end up stuffed and corroded anyway (I now own a crank thread chaser . . . )

@morlamweb 7 месяцев назад

Dust caps tend to hold water and dust in the crank threads, especially if they have holes in them, as these do. And I've had to chisel out old, seized dust caps a few times on my bikes. Nowadays I ride without them. I use stainless steel or titanium crank bolts for corrosion resistance.

@jrpzjrpz24 10 месяцев назад

I love vintage bicycles 😀♥

@johns3106 10 месяцев назад

Heck…I’d still use clips and straps if I could still get shoes that worked with them! I much preferred the feeling of the positive connection between foot and pedal and never found “tight” straps to be uncomfortable. But those days are far behind us now!

@Rick-B8 10 месяцев назад

Always educational. Thank you.

@susanandtimrice5265 10 месяцев назад

Big ring in front, small cog in back - max gear

@FrankDeMaria-te2ee 10 месяцев назад

love the intro, great info as always :)

@joehopfield 3 месяца назад

Special effects for pedal strike!❤❤

@ronhuffman7973 8 месяцев назад

It’s interesting to watch vintage bikes serviced. Certainly less parts than today, but possibly more skill required to set bearings properly. Thanks for sharing your knowledge.

@hpevans9041 10 месяцев назад

Hi great video. I’m guessing you’ve set the gear levers in that position as that would put the chain on the big chain wheel at the front and smallest cog at the back. The fastest setup, I think you’d need to be going down hill 😮

@mattgies 10 месяцев назад

It brings the chain closest to the camera for the picture.

@jasonroper7154 10 месяцев назад

Great video today as always

@MobileBicycleRepair505 10 месяцев назад

Your the best Calvin. I look up to you.

@user-cx2bk6pm2f 10 месяцев назад

Diggin it. Well done. 😀👍

@AAAAAAAAAAAAAAAAAAAAHH 2 месяца назад

Cool sparks

@viperocco 10 месяцев назад

i like the crank extender tip

@komoonkh 10 месяцев назад

Thank god for hollow external bottom brackets. Those cup and spindle ones woke up some bad memories😂

@JoelSzymczyk 10 месяцев назад

adjust cup and cones perfectly, only packed with toothpaste instead of grease... go ride a few miles then tear apart and clean... polished to a mirror.... damn I'm older than I think I am

@garysladek9110 10 месяцев назад

I never knew the crank arm trick to find knocking. Thanks.

@micahyarbrough5513 8 месяцев назад

Same! I currently have a cup and cone bottom bracket torn apart, so I'll have a chance to try this new method soon!

@ptinde3179 10 месяцев назад

In an old race bike photos, shift lever positioned to intimidate at 52 x 12, or Biggie small as mentioned by Romanelli9999

@ebikescrapper3925 10 месяцев назад

Valves aligned.

@romanelli9999 10 месяцев назад

Biggie small.

@JMcLeodKC711 10 месяцев назад

@6:30……yes that crank has some stories to tell. How about the time it won everything.

@daniellarson3068 10 месяцев назад

After seeing the hassle he had with adjusting the bottom bracket bearings, I'm glad I just replaced that mess with a cartridge.

@colnagocowboy 10 месяцев назад

I prefer handbar end shifters

@daniellarson3068 10 месяцев назад

I bet they are safer as your eyes do not leave the road.

@grahamsteamer3419 4 месяца назад

Thank you for this GREAT series! Does your bicycle repair book cover this era of bicycles? I only ride/buy vintage bikes and am always on the look out for more even if they are fixer uppers. I am anxious to learn more.

@parktool 3 месяца назад

Yes it does! it goes over the concepts of these bikes and newer bikes.

@sandy_knight 10 месяцев назад

I'm not a roadie so I don't know which way the shifters go but I'd assume you leave the shifters in that position because that's the gear you'd normally set off in? (I hate it when I let mates ride my bike and when I get it back its in some stupid high gear)

@yarmar97 10 месяцев назад

Love it!!! ((:

@gardnerwebb3749 10 месяцев назад

Calvin i hope you have many many more rides. Bless you.

@TSKseattle 10 месяцев назад

In my 50 years of experience you will notry get square taper crank-to-arm tightened with only the bolts/nuts. After clinching the boltime you should whack the arm with a soft dead blow mallet, then retiighten the taper. Lay it downow with a wood block on the opposite crank to isolate the bearings from the hammer

@jasonroper7154 10 месяцев назад

Love the channel, love park tools.but why oh why when you order a rather expensive work stand ,why is non branded really dinky tools sent to put together and not a small set of park tools?😁

@mutualin4mation 10 месяцев назад

Biggie smalls!

@zygmuntthecacaokakistocrat6589 10 месяцев назад

3:08 did anyone else see the spindle magically appear? and when did the grease go in, or the spindle shroud?

@bmxscape 10 месяцев назад

thats the fast gear, we dont go slow on a road bike

@NonLegitNation2 10 месяцев назад

6:20 could you maybe fill those pits in with a little bit of JB Weld

@EriebyCycle 10 месяцев назад

Because fast

@nicholasbuttery511 4 месяца назад

Park Tool why have you never released a 5mm Allen Key/Hex Wrench with the Screwdriver type handle but youhave in 6,8 and 10mm variations?

@parktool 4 месяца назад

The 6, 8 and 10mm are seen on pedals and cranks which require more torque, hence, the padded handle. The 5mm is common with M6 threading. That size does not need the higher torques, and a big handle tends to encourage over tightening that thread.

@SerPurple51 10 месяцев назад

My bike came with toe cages, instantly switched them out within a week. BTW, speaking of stupid things - I had a new bottom bracket installed on my bike. The spacers they provided weren't alloy, steel or carbon but plastic... as I was pedaling I was hearing clicking, not squeaking or creaking but clicking. Go figure the sound is gone once I put some alloy spacers on. Why they'd use plastic instead of alloy, I simply don't understand.

@jonathanzappala 10 месяцев назад

If you set the low FD position with the lever forward, you’re not going to be shifting anywhere!

@lindajesse8250 6 месяцев назад

Chain length?😊

@Sir_Arlin 10 месяцев назад

why? FAST MODE

@Valka2006 11 месяцев назад

Damn

@rated89 11 месяцев назад

Ya, Calvin in a fedora got me all hot and bothered too 🥵

@Rick-B8 8 месяцев назад

Shift Levers: Biggy. Small.

@larryt.atcycleitalia5786 8 месяцев назад

Gotta love Calvin but WTF put the non-drive crank-arm on..instead of the crank? Extra time and labor to yank it off to put the crank on...so WTF not just put the crank on once, followed by the non-drive arm once BB is installed/adjusted? I was taught it's better to minimize pushing square-taper arms on/off.

@descending_dudu 11 месяцев назад

Yo Mr.White

@freds4703 10 месяцев назад

Pedaling on the toes? Maybe just a small foot.

@fullongaming7050 10 месяцев назад

I want to service my bicycle by you

@01FozzyS 10 месяцев назад

Biggie Smallz! lol

@The19strat86 10 месяцев назад

In germany we call it: "Kette rechts!"

@tfa8 8 месяцев назад

4:26 "...it's about 20 to 25 foot pound, pretty snug." who needs a torque wrench if you know it by experience 😂

@lgrankin 10 месяцев назад

Biggie-smalls all day long for photos

@unogazzy84 10 месяцев назад

Why did you not install the dust caps? Those reasons you gave are nonsensical.

@parktool 10 месяцев назад

Not at all. The "dust caps" have 5mm holes, and will not keep out dust. In fact, they act to hold any water in, and not let it drain. This was a race bike, and extra steel that serves no purpose would be not welcome.

@ebikescrapper3925 10 месяцев назад

Exactly, there are there for a reason

@unogazzy84 10 месяцев назад

@@parktool I didn't know they had holes in them. That makes the purpose of a dustcap completely meaningless. Who was the genius that designed those?

@peterwillson1355 10 месяцев назад

@@parktoolmost dust caps are aluminium. Dust caps are important because they keep crap out of the threads on the cranks. This is important when you come to use a crankpuller to remove the cranks. If the threads are full of dust etc, they will need cleaning out first. I put a piece of very adhesive aluminium tape over the whole dust cap, so yes, they really are keeping out the dust AND any water. Weight here is totally negligible.

@shoff535 10 месяцев назад

Hah! I thought they improved aerodynamics! (just kidding)

@DougieFresh13 10 месяцев назад

Old tat.

@medawc519 10 месяцев назад

7:51 Calvin... are you serious? Any part with fatigue cracks is a big no-no, even for a coffee ride. You can't know how much strength is left in that crank. The limit may be just around the corner, maybe even literally. That crank belongs either to a trash bin or to an experienced welder in case you really want to save it. Sorry, but for the first time you deserve a thumbs down for really terrible advice.

@luukrutten1295 10 месяцев назад

I wouldnt have put in the pitted cup either. those can still be sourced.

@jonathanzappala 10 месяцев назад

@@luukrutten1295by the time you spend the money on every part like that, you could have bought a modern bike that’s nice to use. Reuse everything you can, or let someone else turn that bike into a money pit.

@SkyhawkSteve 10 месяцев назад

Calvin's suggestion might work for some, but I was cringing when he put it back on the bike. If the owner checks it before each ride, maybe that's a good solution, but I can't imagine it getting checked more than once or twice. Might be a good reason for a video on treating the crack-prone junction between the arm and spider?? I'd do something about the gouges from the front derailleur too.

@lukem7203 10 месяцев назад

I have the feeling this bike is now going to be used for display and nostalgia. Pretty sure it's racing days are over. @@SkyhawkSteve

@SkyhawkSteve 10 месяцев назад

@@lukem7203 well, Calvin marked the end of the crack and said it would be checked on each ride. He also said the bike would be used for casual riding. There's no shortage of photos of broken cranks and stories about people hitting the ground hard when they do break.. even on non-competitive rides. Everyone has to make their own informed choice. I've filed out short cracks on my own old cranks, and would never consider using the cranks Calvin has.