Giant Reign Restoration: Replacing Chainring & Bottom Bracket
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- Опубликовано: 8 сен 2024
- Hey RUclips,
In this video, I show you how to replace your chainring and bottom bracket; two easy parts to replace, but difficulties can arise if you are not careful.
For the chainring, there are two things you need to pay attention too: number of teeth, and bolt circle diameter (BCD). The number of teeth on the chainring (especially if it's a single ring in the front) is going to make a big difference with how the bike descends and climbs, so you need to decide what chainring you need based of off your riding style. For the BCD, here's a link to help you measure or figure out your size: www.wolftoothc...
For the bottom bracket (BB), there are many variables that need to be considered: BB style, BB thread types, size, and installation. Here is a good website to help you understand bottom brackets a little more: www.parktool.c...
Tools: depending on what type of bottom bracket you have will determine the tools you need. For this video I used the BBT-9 from Park Tool.
Please leave a comment or question.
Best,
-WatchNato
Hey what’s up man, I recently scored a 2008 reign xo. I’m trying to get it up to par. Everything seems fine but I noticed the chainrings are a little worn. It’s a dual setup 9 speed. Do you know the stock sizes for this bike? Or should I upgrade sprocket sizes. And since I’m doing that should I replace the bottom bracket while it’s exposed? Been doing my research and been coming up short.
Hey Corey,
Let me look at the old parts. If I hear you correctly you want the front to have two sprockets and the rear cassette 9 (2 x 9)?
I know you probably saw that I converted mine to a 1 x 10.
Best,
Nate
@@watchnato hey Nate, yes I want the front to have 2 sprockets, looks like I have a 36t on the big front sprocket, not sure what the smaller one is. I know the cassette is a 9 speed 11-34. I’m trying to avoid investing too much into the bike right away because it is a used bike and I want to make sure the rest of the components will last. So I’m thinking new front sprockets, cassette, and chain for now. Also I wanted to compare what the stock bike specs are to see just how stock my bike is. Btw what’s your reason for converting your bike to a 1x10?
@@coreydennison8729
To answer one of your first questions, I would definitely replace the bottom bracket. It’s probably old and is an important part.
So I just checked, and I actually have a 1 x 9. 30 tooth chainring in the front, and like a 11x34 cassette. I personally hate having a front derailleur. They are a pain to work on and require more parts. I also made this bike for the ski slopes (chair lift bike). It’s not much of a climber, but fun to go down. I did some research and saw that this bike is originally a 3 x 9. The front chainrings are: 22, 32, and 44. If you have a 36 in the front, then I would go with a 22 for the smaller chainring. The most important thing is that your rear derailleur is compatible with your cassette, and that your front derailleur works or is compatible with the 22 and 36t chainring. It’s hard to know exactly since I haven’t seen the bike. Also, mine was originally a 1 x 9. The person we got it from must have already converted it into a 1 x 9.
Let me know what you find, and I hope this helps.
Best,
Nate
@@watchnato thanks Nate, that helps a lot! Btw could you send me a link to the website you found the stock info on?