Kissena Forum Archive

Bicycle Tech/Gear Discussion Thread

8105 comments · 108281 views
You had, but the tallest cog didn't seem tall enough, so I wasn't quite sure what I was seeing.

You solution was....?
i had to buy a new wheel with a proper freewheel, and a six bolt brake mount, with 131 spacing.
so my $88 dollar fix ended up considerably more expensive. On the plus side my son declared “I can climb WALLS woth this thing!”
so, a bargain in all.
Has anyone tried these? I've been thinking about going tubeless for my road bike but wanted to get some opinions/thoughts!

https://www.vittoria.com/us/en/bike-accessories/tire-inserts/air-liner-road 
Has anyone tried these? I've been thinking about going tubeless for my road bike but wanted to get some opinions/thoughts!

https://www.vittoria.com/us/en/bike-accessories/tire-inserts/air-liner-road 
You should go tubeless, you will not need those.

eloy said:
Has anyone tried these? I've been thinking about going tubeless for my road bike but wanted to get some opinions/thoughts!

https://www.vittoria.com/us/en/bike-accessories/tire-inserts/air-liner-road 
You should go tubeless, you will not need those.

The review i read said they are tricky to install 
@SamsonDrews I know nothing about these specifically but if they're anything like an mtb Cushcore equivalent they could be very cool. A ton of my mountain biker friends swear by Cushcore given that it allows you to run lower tire pressure and allows you to ride home on a flat. Obviously this Vittoria product has yet to be proven but I think if it works well and isn't too much of a pain to install/maintain it could be very very cool. Thanks for bringing it up!!

https://www.cushcore.com/

If you think standard tubeless clinchers are already enough of a pain that you’re heading back to #teamtubeinside, just stop reading now. But if you’re already familiar with Vittoria’s other inserts — or, even better, something particularly arduous like CushCore — these aren’t too awful.

That said, the tool kit is highly recommended. Because the Air-Liner’s smaller diameter fits quite tightly on the rim bed, you can’t press the tire beads into the rim’s center channel as easily as usual — and even if your thumbs can manage the task, the foam serves to push the bead out toward the sidewalls, just as it’s designed to do. 

TLDR: For road riding, a tubuless set up without liner, will ride better and will be infinitely easier to repair. 


cushcore or vittoria or whatever brand tire liner, make sense in wide tire, low pressure situations like mtb, where it would prevent burps, and tires are easier to mount. etc...

for the road, well, I can imagine a sort of winter tire role, where the liner/core allows to keep riding for a bit in the event of a full or slow flat. but, else, what's the point?

In performance oriented, high(ish) pressure, good weather riding, liners offer little benefit. If you are using them, but get a flat that sealant won't seal, you would eventually need to remove the liner to put a tube in (think of all the pain this involves)

Much better and simple: Set up tubeless with sealant, keep it light, fully using the advantages of tubeless. If you ever get a flat that won't seal, just pop a tube in, keep riding. 


Agree with Eloy 100%

BTW the future is clincher with latex tubes 

https://cdn.mos.cms.futurecdn.net/WPkb8bDSAhiepwyUFB9HqK-970-80.jpg.webp
Agree with Eloy 100%
This was a joke, I can tell.
I’ve run mostly clinchers on my bikes but I checked and they’re all butyl tubes. Very happy to know that that’s what keeps me from winning Flanders every year. 
I'll be running cotton wall clinchers with latex tubes for Flander's Daughter, so watch out. :)
btw those specialized cotton tires ride AMAZING and last, I am not kidding, about 200 ~ 300 km or 2 to 3 rides. $$$$$$$$$$
Agree , i had the 28mm hell of the north , for 1 ride , flatted and went back to Vittoria
Lol I was going to sell mine off as "almost new" but I've put like 60km on them so they're basically trash at this point. Time to start a tire fire.
eloy said:
btw those specialized cotton tires ride AMAZING and last, I am not kidding, about 200 ~ 300 km or 2 to 3 rides. $$$$$$$$$$
I've gotten at least at a race season (mostly) out of mine

Put them on at the start of 2019.  Raced them throughout 2019 (for FBF, Harlem, and a few others, I swapped out the 24mm tires for Conti GP4000sii 25s).  Rode them a bunch on 2020.

I'd guess at least 2500km on them.  And they have some life left, though the tan sidewalls have yellowed.  



the might survive the hell of the north, but they can’t deal with 1 ride on Flatbush

This was fun to figure out coming down the hill in prospect park 
That doesn't look proper
Ah yes the new pedal system where you unclip by starfishing.


Hahaha
i would not recommend this DIY Speedplay hack. 

But anyone have any insight on why this happened? I had a little bit of lateral play in the pedal for a while but I thought it was just how these pedals ran. I think the bearings may have failed on this ride (and I think are on the road somewhere)? When I slid the axle back into the pedal body, I was able to roll home but it didn’t spin freely nor did it remain attached. 
Pedals are crankbrothers?
When I slid the axle back into the pedal body

haha, I hope you realize that you will need new pedals (or yet another new bike jk jk)
Pedals are crankbrothers?
Yep, eggbeater 3s I think 

and @eloy oh yes yes haha. This was just to get me home 4 blocks from the park. 
There's a site showing how to rebuild them, and a video, and after watching it, I'm wondering if you have all the parts?  You're either going to tell me you do (yay), or you're missing the end cap, which is the blue end piece that screws onto the end of your pedal (check the other one).
For the pedal body to come off, the end cap and the inner nut would both have to be unscrewed - though I'm wondering if only the inner nut would do it, regardless of the end cap.
I'm guessing the end cap and nut just worked their way loose, and possibly the outer contact sleeve (black part) also cracked or broke?
But if you tell me that you do have all the parts and everything's tight, then there's an issue with a catastrophic failure with the pedal body or spindle, possibly with the threads on the spindle itself.
I don't have these pedals (I have other kinds that break in different ways), so I'm limited in understanding how these all screw together, but it looks like the pedal just unscrewed.
This happens.  In general, I mean.  Rubber and plastic fail, and bolts come loose.  The world's an imperfect place.
The pressure of your foot on the pedal pushed the body right off the spindle once everything was unscrewed.
But that's because you've got power, bruh.
Your in luck!  There's a rebuild kit available, and some extremely clear instructions, requiring pretty basic tools.
https://youtu.be/R3wFc1wwOgM
https://mtb.guide/en/repairs/pedals/how-to-replace-bearings-seals-crankbrothers-eggbeater
https://www.crankbrothers.com/products/pedal-refresh-kit

One major lesson I've learned is if I hear something rattling, from a bike that doesn't rattle, I stop immediately before screws and bolts start dropping.
Sometimes, though, you just don't hear it.
The other lesson is, when someone posts about a pedal coming off, I check all my own pedals.
I think it's past time I service my speedplays, disgusting as it is to do...
Thanks for this! It looks like I have all of the hardware except the bearing that should be on the spindle side of the pedal. I’ve got the end cap on there though maybe it came loose and caused the bearings to fail. Not sure though because it seems tightened properly. It looks like that service kit will have everything I need though so I’ll look into it! 
Never could get what everyone sees in those lollipop pedals😂
Never could get what everyone sees in those lollipop pedals😂
Light weight, low stack height, easy to fine-tune float, great cornering clearance, better aerodynamics.  

So little to love.
@RobertMullen You can just buy a whole pedal refresh kit! It's like $25 I think and you just swap the bearings and regrease and pop that sucker back on, super easy.