Simplest but complete upgrading of cup and cone to sealed bearing

I have just finished upgrading my crankset and bottom bracket.

The old square spindle iron crankset weighs 1,400 g.
The replacement aluminium crankset weighs 800 g, savings 600g.

The cup and cone uses an anxle with removable bearings. Mine does not function properly because it makes noises. It turns smoothly by not tightening the holding nuts too much.

You don't need special tools to open the holding nuts. For old bicycles that were never opened up for more than 10 years, better put antirust spray, WD40, and leave it overnight. I tried to open as many screws as possible. Those that require too much effort, I sprayed first. Usually I just waited for a few minutes.

When I leave the antirust oil overnight, all the screws were easily opened. I did not open all, afraid that the bearings will be lost. I just used lithium grease spray.

 When I dismantled today, Zthe bearings are actually cased. However, the bearings were well greased.

When I replaced the bottom bracket with the sealed cartridge bearing, you need a special tool, a larger version of the freewheel tool. You don't need the old holding nuts and bolts. Even the crank leg nut is replaced by a nut.

https://youtu.be/nZysSfdkeEY

Crankset

Sealed Threaded Bottom Bracket


Square spindle crank remover


Cartridge Bottom Bracket Tool


Comments

Post a Comment

Popular posts from this blog

Bottom Bracket Standards and Terminology

Image
https://www.parktool.com/blog/repair-help/bottom-bracket-standards-and-terminology Sep 18, 2019 / Bottom Brackets Bottom Bracket Standards and Terminology Over the years, the bicycle industry has created numerous bottom bracket standards. Unfortunately, the industry has not been clear and consistent when creating terms and names for them, sometimes creating several names for the same bottom bracket standard. This article will review the many bottom bracket standards on bicycles. 1 Introduction The bottom bracket is held inside the part of the frame called the bottom bracket shell. With use, the bearings will wear out and require replacement. Replacement part compatibility can be a complex issue. When in doubt, check with the bike manufacturer, the component manufacturer, or local bicycle repair prof
Read more

Bottom Brackets and Bottom Bracket Shells

Image
 Trustpi Bottom Brackets and Bottom Bracket Shells [How-To]   4 June 2018 https://www.mantel.com/blog/en/bottom-bracket-shells-and-bottom-brackets#:~:text=There%20are%204%20widths%20available,is%20commonplace%20with%20mountain%20bikes. The bottom bracket shell of a bicycle is the part of the frame where the spindle of the cranks go through. The bottom bracket and spindle together form the foundation of the drivetrain on your road bike or mountain bike. All the different standard dimensions can make it hard to determine what kind of bottom bracket shell your frame has and what bottom bracket bearings you need. How can you even tell what bearings and bottom bracket shell your frame has? This extensive how-to explains exactly what you need to do in order to service and replace your bottom bracket bearings yourself. The bottom bracket bearings are sometimes referred to as just the bottom bracket as well. Whenever we talk about replacing your bottom bracket, we’re referring to the actual be
Read more

Installing DNP 11-34T threaded freewheel

Image
I ordered the DNP 11-34T threaded freewheel from the official store of  Drift Maniac. It has a rating of over 99% which you need because Aliexpress is no longer on the side of buyers. Aliexpress accepts resolutions where the seller requests the item to be returned at the buyer's expenses. I read reviews of this item in Amazon.com and they are good. https://m.aliexpress.com/item/1005001670160452.html Better order the tool if you have a shorter version because the shorter version of the freewheel remover does not allow spanners to grip its edges. The range of this freewheel is from 11-34T compared to Shimano Megarange that only manages 14-34T. Using the 11T as the highest gear made it hard to turn the rear wheel but downhill and ebike allows us to maximise our pedaling energy. I installed this freewheel using Shimano Tourney TX35 rear derailleur standard version despite my bicycle requiring a hookup mount. It means that I need a derailleur hanger which is supposed to be s
Read more