I'm a champion bike mechanic...
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Re: I'm a champion bike mechanic...
Postby blizzard » Sun Jun 16, 2024 4:51 pm
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Re: I'm a champion bike mechanic...
Postby P!N20 » Mon Jun 17, 2024 9:38 am
Next job is to clean and grease the brake caliper pistons then bleed the system and get this bad boy on the road.
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Re: I'm a champion bike mechanic...
Postby Mr Purple » Sun Jun 23, 2024 12:57 pm
Right cleat jumped out of the pedal while accelerating at the beginning of today's 74km ride and it's hard to tell just how worn it was before I skidded along the road with it for a little bit, but it's certainly very worn now!
Lesson learned. Loose pedal, check cleat. Also log mileage on cleats on Strava like every other consumable on the bike.
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Re: I'm a champion bike mechanic...
Postby blizzard » Sun Jun 23, 2024 6:43 pm
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Re: I'm a champion bike mechanic...
Postby jasonc » Sun Jun 23, 2024 6:46 pm
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Re: I'm a champion bike mechanic...
Postby blizzard » Sun Jun 23, 2024 7:42 pm
Any reason for the upgrade or just because? I would probably leave it wireless on the Aethos for aesthetic reasons.
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Re: I'm a champion bike mechanic...
Postby CmdrBiggles » Sun Jun 23, 2024 7:53 pm
Snazzy.
DuraAce wireless has been spoken of as the equal to SRAM's RED. I would be interested in feedback about comparative performance of both that riders have had. Me, if confronted by a choice of bike with SRAM RED or DuraAce, I would leap for DuraAce. I am not exactly turned on by the drab look of SRAM's RED gruppo compared to the holographic finish of the FORCE.
I have seen the DuraAce transmission on a few higher end MERIDA roadies in Melbourne shops.
Anxiety about wireless shifters is overcooked I think. Mark your calendar for replacement after two years, at the start or end of Daylight Savings, or some other notable event. I carry a spare battery pair in my seat pack. There will be prior warning up front on the computer.
'18 GT Zaskar Carbon Comp 9r
2021 Dragon Raptor e-scooter ['Yellow Peril']
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Re: I'm a champion bike mechanic...
Postby jasonc » Sun Jun 23, 2024 8:35 pm
I wanted the hidden buttons. Looking at the weight saving between 105, ultegra and dura-ace. I thought why not! Bike bug had 10% off so I did it. So far from stock aethos comp with 105 di2 it now has:
- a lighter stem (shorter)
- carbon bars (narrower)
- ultegra crank
Before it left the shop it got a 155 power saddle
This weekend I've replaced:
- dura-ace cranks and levers
First time using the shimano app to connect the shifters and derailleurs. Worked well
- ultegra cassette
On order is a set of wheels
Now I have more stuff to sell
I like the idea of a single battery to maintain. There are enough batteries on my bike
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Re: I'm a champion bike mechanic...
Postby 2wheels_mond » Sun Jun 23, 2024 9:13 pm
On 105 Di2 I find it a pretty painless process, especially considering my crankset power meter has a battery that lasts as least as long as the Di2. Once the notification comes up on my Garmin, next time I'm home I just sit a powerbank in the bottle cage with a cable coming out for the Di2 battery and the power meter battery. Only have to do it once a month at most. Can't get much easier than that!
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Re: I'm a champion bike mechanic...
Postby Mr Purple » Mon Jun 24, 2024 6:46 am
What's your bike weight down to Jason?jasonc wrote: ↑Sun Jun 23, 2024 8:35 pmI wanted the hidden buttons. Looking at the weight saving between 105, ultegra and dura-ace. I thought why not! Bike bug had 10% off so I did it. So far from stock aethos comp with 105 di2 it now has:
- a lighter stem (shorter)
- carbon bars (narrower)
- ultegra crank
Before it left the shop it got a 155 power saddle
This weekend I've replaced:
- dura-ace cranks and levers
First time using the shimano app to connect the shifters and derailleurs. Worked well
- ultegra cassette
On order is a set of wheels
I was vaguely looking at that model - 7.5kg with the hefty DT Swisse R470 wheelset (1780g). You could replace the wheelset with a Farsports or Light Bicycle for not a huge amount and get it under 7kg. Carbon bars and a lighter saddle and it's below the UCI limit.
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Re: I'm a champion bike mechanic...
Postby jasonc » Mon Jun 24, 2024 7:06 am
Bottle cages are from aliexpress and weigh 13g each
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Re: I'm a champion bike mechanic...
Postby Mr Purple » Mon Jun 24, 2024 8:05 am
Pretty much the same set I'd go with - make sure you use the Hambini code, they still worked when I last bought a set.jasonc wrote: ↑Mon Jun 24, 2024 7:06 amI'm not weighing it till the wheels arrive. Technically I already have the wheels as they are on my tarmac. They are farsports feder dt240s 28mm wide, 35mm deep. I've ordered exactly the same. The new ones will go on my tarmac as it will get used more.
Bottle cages are from aliexpress and weigh 13g each
Instant 500g weight saving there!
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Re: I'm a champion bike mechanic...
Postby jasonc » Mon Jun 24, 2024 1:08 pm
The wheels are already ordered
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Re: I'm a champion bike mechanic...
Postby bychosis » Mon Jun 24, 2024 4:30 pm
Much better than the last efforts requiring several attempts to get it right.
I'll leave the true champion mechnic comments until completing truing. Its a bit wobbly so far but was getting late last night.
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Re: I'm a champion bike mechanic...
Postby bychosis » Thu Jun 27, 2024 4:52 pm
Back into the home made truing stand and it looked like it was dished completely wrong. Yep. When reversed in the stand it was out. Turns out I'd not set the hub in the axle stand bit properly. Couple more measures and the hub set more level. Loosen all the left spokes, tighten all the right ones to re-dish. Still not overly true, but close enough for a test ride.
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Re: I'm a champion bike mechanic...
Postby stevenaaus » Thu Jun 27, 2024 5:23 pm
I never had the heart to tell him , as mate was always doing gratis bike repairs. Anyway , i gave another retired mate an article on wheel building, and he re did the thing (wheel was for himself).
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Re: I'm a champion bike mechanic...
Postby OnTrackZeD » Fri Jul 05, 2024 12:58 pm
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Re: I'm a champion bike mechanic...
Postby jasonc » Fri Jul 05, 2024 1:00 pm
I suppose I'll find out for both of usOnTrackZeD wrote: ↑Fri Jul 05, 2024 12:58 pmI like Veloplugs but was wondering are they good with TPU tubes?
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Re: I'm a champion bike mechanic...
Postby foo on patrol » Fri Jul 05, 2024 3:09 pm
Pulled the cover off the lever and found it wasn't locking over the pawl for the small chainring but couldn't understand why, so I undid the cable at the changer and the changer went straight to the frame, which meant it should have been getting the slmall ring. Retensioned the cable and then I couldn't get the big ring again, so after another half hour of adjusting screws and tensioners I finally figured it out. I put the lever into the very lowest position like it was on the small ring and reconected the cable ans set about adjusting things again and Bob's ya uncle.
Foo
Goal 6000km
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Re: I'm a champion bike mechanic...
Postby robbo mcs » Fri Jul 05, 2024 7:54 pm
I find the plugs can make fitting the tyre more difficult. They protrude slightly, and reduce the depth of the wheel well in the centre of the rim. The latest tyres tend to be tight (mostly tubeless compatible). When you are trying to push the last bit over, you need all the room you can get to push the rest of the tyre into the central wheel well.
I virtually never puncture TPU's. However I did have 2x punctures relatively quickly after fitting them on these rims. I never found the cause, vut thought I might have damaged them innthe difficult fitting process.
Eventually I just pulled the plugs out and went with conventional rim tape.
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Re: I'm a champion bike mechanic...
Postby jasonc » Fri Jul 05, 2024 8:02 pm
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Re: I'm a champion bike mechanic...
Postby Mr Purple » Mon Jul 08, 2024 12:56 pm
Ah, yeah. I've done that, usually when fitting a new cable!foo on patrol wrote: ↑Fri Jul 05, 2024 3:09 pmPulled the cover off the lever and found it wasn't locking over the pawl for the small chainring but couldn't understand why, so I undid the cable at the changer and the changer went straight to the frame, which meant it should have been getting the slmall ring. Retensioned the cable and then I couldn't get the big ring again, so after another half hour of adjusting screws and tensioners I finally figured it out. I put the lever into the very lowest position like it was on the small ring and reconected the cable ans set about adjusting things again and Bob's ya uncle.
Foo
It's one of those things that is completely logical but I have to mentally check it every time otherwise it just ends in frustration.
Probably like 'threading the chain through the RD incorrectly' it's just one of those mistakes you have to make at least once.
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