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Topics - kbernstein

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Maintenance, Mechanics, & Tools / Lower headset gap?
« on: May 05, 2024, 01:53:41 PM »
I have a ~2mm gap I don't understand and can't fix that didn't use to be there. This is from a carbonda 696 with the supplied headset, barely ridden only about 50km worth of shakedown rides
The lower split crown race don't sit flush with the lower headset bearing no matter what I do, I can't press it with my hands, tightening the steerer plug does nothing and there is no excess grease
I've tried fully omitting the split crown race like some people report but it steers like shit. But the gap disappears which confirms this is the culprit
Unless I'm crazy I think they used to sit flush and are supposed to




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Maintenance, Mechanics, & Tools / Bang for buck hydraulic oil, brake cleaner, assembly grease etc
« on: April 04, 2024, 09:24:50 AM »
Not strictly aliexpress but I would love to know what fluids you guys use on a budget, if there are any replacement or hacks. What mineral brake oil do you use? Assembly grease, to clean brakes etc. Are there hardware stock hacks that are a lot cheaper than buying the bike specific maintenance products?

3
Maintenance, Mechanics, & Tools / MTB headset upgrade
« on: February 13, 2024, 03:59:15 AM »
Please help me sort out my MTB headset I've been procrastinating for a year
I have old shitty open ball bearings (the bottom one is especially trash) and I would like to upgrade it to sealed bearings so I can finally sell it and enjoy a non-cluttered basement again
The top of the fork measures 29mm, 38.6mm at the bottom and the headtube 40mm inside
ZTTO have a nice graph but I can't tell if I have a "zerostack" or integrated headset type



Can somebody point me to the right bearings, unless a conversion from open ball to sealed cartridges is not possible? Thanks in advance
Also, could I reuse that star nut inside the fork?

4
Vendor Discussion & Reviews / When is it appropriate to ask for a refund?
« on: October 01, 2023, 02:58:29 PM »
Bit of a legal question, bit of a moral question.
Bought a GPS mount on august 22, received early september. Tons of play, not secure at all, might damage a GPS if used. Contacted support, sent a vid and they agreed it wasn't normal and sent a new one. Received 17th, has the exact same issue. Neither of us think I installed it wrong, my GPS is an official garmin device that is compatible (and it mounts fine with no play on my old mount that snapped at the hinge). Support has been just telling me to wait it out but I'm getting impatient and don't know how many more "please friend wait for engineer response" I can take, it's been a month and I don't think they can solve my issue. I've never had to ask for a refund but to be honest I have absolutely no faith in their product at this point. Is it morally acceptable for me to ask for a full refund yet? Will I have to send them back or only destroy with video proof? It's not a big monetary loss but I want to move on now.
Thank you

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Maintenance, Mechanics, & Tools / Hydraulic shifter "blocks"
« on: September 05, 2023, 04:48:10 AM »
We're all familiar with the little clips you shove between the brake pads to not retract them, but I find them pretty annoying. I've heard of an equivalent that lodges itself under the shifter to prevent braking but I've never seen them in person and can't find them for sale online
I'm talking about these yellow clips, sometimes visible in pictures of groupsets
 


Does anyone know where to get them? Is this something included when you buy the boxed versions of new groupsets, that bike stores presumably throw away? Thanks

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After The Ride / Mongolian UCI team running all-chinese bikes
« on: June 06, 2023, 02:51:00 PM »
I was browsing procyclingstats and stumbled upon a mongolian team. Opened the gear page to see what kind of bikes and had a nice surprise:
https://www.procyclingstats.com/team/ferei-mongolia-team-2023/more/gear
https://www.procyclingstats.com/images/gear/at/cm/ferei-mongolia-team-2023-a1374578a1.png

Just wanted to share because I found that very interesting. Mongolia fascinates me and as a geoguessr veteran I would love to see the roads they train on... Any insight?  :)

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29+ & 27+ / Budget aliexpress fork recommendations
« on: May 24, 2023, 08:49:18 AM »
I'm looking to replace my suntour air fork that has never worked since getting it serviced would cost more than I'm willing to spend.
Looking at ali it seems like there are a bunch of cheap options (<120€) from the likes of bolany, ztto etc. I have almost no experience with mountain bikes so I don't really know what to look for or how to judge, but I know my bike is a 27.5 with 100mm travel. Has anyone tried them? Thanks

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