Ask the experts

[SJG]

I have Ibis hubs, and have to change bearings around every 2500 HARD miles. On my 3rd freehub also, they go around 3k with my use. I've been impressed with them. Last bike had Hope Pro2s and those bearings only went 800-1000 miles before they STB. Regularly.

[toast2266]

So my question is - where are they getting 5lbs heavier on the other aluminum framed (both are "Alpha Platinum") bike?

I could see a lb or 2 on the crank / bb / cassette...zero on the fork, negligible on the dropper / wheels / tires...3lb difference on the frame seems crazy...

Published weights certainly tend to be bullshitty, but on 2 bikes from the same company, I'd be inclined to believe the published difference in weight is in the right ballpark. Lower end parts add a lot of weight, really quickly. Like, I've seen plenty of instances where going a rung or two down in something like a cassette will add a full pound.

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[mildbill.]

Published weights certainly tend to be bullshitty, but on 2 bikes from the same company

Unless it's a conspiracy to get me to buy the more expensive bike...which...you don't need a conspiracy for that...

[Iowagriz]

Mildbill- I'll fully into the OCD, analysis headspace. Start spreadsheet with all components. Weights can be found via pricepoint or other websites.

Some guesses will have to be made, but you'll eventually narrow it down to a frame weight. That should show you the problem areas. In my experience. Tires, wheelset, cassette are the 3 biggest problem areas. Those can also be improved as they wear out. The frames will be within half pound (normally).

Eta- Forks can be major weight gain, and expensive to replace. Watch that area.

[joetron]

Ask the experts: Would a bike company present misleading weight numbers? How shocked should I be!!??!

Situation: 11 year old is starting in the NICA world this year. I'm engaged in full analysis paralysis mode on what bike, but was perusing the Trek website thanks to the 25% NICA discount...

Trek is offering 2 aluminum hardtails with virtually identical specs, listing one at 33lbs in medium, one at 28lbs in medium.

https://www.trekbikes.com/us/en_US/b...lorCode=orange vs. https://www.trekbikes.com/us/en_US/b...black_greydark

The Marlin is more interesting to me because of the size-specific wheels (she is moving up from a 24") and much better standover, in fact the procaliber isn't even in the running due to sizing but the weight discrepancy had me scratching my head.

Fork: Both Judy solo silvers, lighter bike is boost and 120mm vs 100mm (Edit: I now see that they specify a tapered steerer on the lighter bike - safe to assume that 1 1/8" straight steerer on an entry level bike is a heavy steel steerer tube?)
Rims: Same
Hubs: Heavier has formulas, lighter has shimano
Groupset: Heavier has SX, Lighter has Deore
Dropper: Heavier has tranzx, lighter has Bontrager (which is probably a tranzx)
Tires: Heavier has ardent exos, lighter has some bontrager nonsense
BB: Heavier has truvative powerspline, lighter has shimano cups
Both measured with tubeless set up.

And so on.

So my question is - where are they getting 5lbs heavier on the other aluminum framed (both are "Alpha Platinum") bike?

I could see a lb or 2 on the crank / bb / cassette...zero on the fork, negligible on the dropper / wheels / tires...3lb difference on the frame seems crazy...

Powerspline BB and cranks are bricks. So are the cassettes.
It’s not just about weight.
The Deore build is worth the $$. SX is garbage.
The shifter and brakes will feel and perform sooo much better.
Your NICA kid will go faster and be more stoked with the Deore bike.
Trek is not trying to scam you with weight. A Deore bike vs an SX bike is a substantial upgrade.

Edit: I glanced over the size issue in the OG post. Oops….but yeah, a Marlin SX vs a ProCaliber w/ Deore is gonna have a significant weight difference. Same aluminum, but not the same frames.

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[mildbill.]

Your NICA kid will go faster and be more stoked with the Deore bike.
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Copy that - local shop had a Team Marin 1 in a box (deore, RS air fork, boost, they set it up tubeless for her) that they built up after extensive sidewalk testing a Team 2, satisfying dad's insistence that his 90# kid be on a setup with thru axles.

One ride and the 29er seems like the right choice, sizing-wise, as well - and if it wasn't right now it will be in about 3 weeks.

[joetron]

Sweet! Good call.


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[funkendrenchman]

I just bought a used Revive dropper. I’m building up a bike and I installed it in the frame without a cable. Is it normal for it to drop all the way down under my own weight? Don’t want to continue setting it up if there’s something wrong with it.

[toast2266]

I just bought a used Revive dropper. I’m building up a bike and I installed it in the frame without a cable. Is it normal for it to drop all the way down under my own weight? Don’t want to continue setting it up if there’s something wrong with it.

It shouldn't. Check to see that the lever the cable pulls on at the bottom isn't stuck open.

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[funkendrenchman]

It shouldn't. Check to see that the lever the cable pulls on at the bottom isn't stuck open.

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Nope it’s closed. Was going to check the air pressure, but I don’t have the silly extender.

[toast2266]

Nope it’s closed. Was going to check the air pressure, but I don’t have the silly extender.

Air pressure shouldn't matter. If the air pressure was low, it just wouldn't re-extend all the way.

Also check to see if the "revive" bleed valve is stuck open. That'd allow the post to drop.

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[funkendrenchman]

Air pressure shouldn't matter. If the air pressure was low, it just wouldn't re-extend all the way.

Also check to see if the "revive" bleed valve is stuck open. That'd allow the post to drop.

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Thanks. I think it just needed the revive a few times. I tried it a couple times last night and couldn't get it to stay up (that's what she said). Tried again this morning and it works.

[jm2e]

Yea, it needs to be revived. It’s worth getting one of their mini lever ($10 at Universal Cycles).
I had a first gen Revive that eventually needed multiple “revives” during a single ride (5 years old). Sent it to Dirt Labs for a rebuild. They have an arrangement with Bike Yoke to upgrade all older models to newer internals for no additional charge (other than standard rebuild).
You can also rebuild yourself. My understanding is it’s pretty straight forward.


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[jm2e]

Nope it’s closed. Was going to check the air pressure, but I don’t have the silly extender.

The extender (Air Valve Adapter) is $6 at Universal Cycles.
I might have an extra one if you need.


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[VTskibum]

Yea, it needs to be revived. It’s worth getting one of their mini lever ($10 at Universal Cycles).
I had a first gen Revive that eventually needed multiple “revives” during a single ride (5 years old). Sent it to Dirt Labs for a rebuild. They have an arrangement with Bike Yoke to upgrade all older models to newer internals for no additional charge (other than standard rebuild).
You can also rebuild yourself. My understanding is it’s pretty straight forward.


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Recently rebuilt a BikeYoke v2 after my revive wasn’t reviving. Was pretty straightforward once i got into it.


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[Tailwind]

Anyone have any details on new Shimano launches?

I noticed during yesterday’s Rocky Mountain Element Launch they have two models they’ve indicated are coming in “early 2025” but didn’t provide parts spec for them. At a glance, it seems like there are two good gaps for Shimano builds and the lack of detail seems to scream “updated XT and XTR” as I think we’re not expecting
Major suspension updates.

[toast2266]

I have no specific info, but given that multiple companies have released frames without accommodations for derailleur cables, I'd bet that wireless XTR will be dropping sometime soon.

[Dee Hubbs]

Anyone have any details on new Shimano launches?

I noticed during yesterday’s Rocky Mountain Element Launch they have two models they’ve indicated are coming in “early 2025” but didn’t provide parts spec for them. At a glance, it seems like there are two good gaps for Shimano builds and the lack of detail seems to scream “updated XT and XTR” as I think we’re not expecting
Major suspension updates.

I have no specific info, but given that multiple companies have released frames without accommodations for derailleur cables, I'd bet that wireless XTR will be dropping sometime soon.

There are new Shimano groups in the wild. Pinkbike has already released photos of the new brakes, and builders/manufactures are under a super heavy embargo with the new Shimano drivetrain stuff.
In a recent podcast with Gerald from Open Cycles, there was much discussion around their new frame and whether it will accommodate a UDH hanger, and he keep saying that it will accommodate SRAMs UDH needs as well as the new need for "the other" company. They joked that that's enough they can say without getting in too much trouble.
I know for a fact that Rocky's Element C90 and C50 with be spec'd with Shimano drivetrain and brakes. This is directly from someone inside Rocky, but that all that can be said for now.

[XtrPickels]

I have no specific info, but given that multiple companies have released frames without accommodations for derailleur cables, I'd bet that wireless XTR will be dropping sometime soon.

I just lost my ProDeal, so something good must be coming...

[Tailwind]

Thanks for confirming my tin foil hat theory on the Element (which looks like a sweet bike by the way).

That's interesting to say the least. I am looking at a new XC Race bike for next year. I've been thinking used but I'm not wanting transmission... so I may wait to see what Shimano drops.

On that note - anyone have any current votes for the current "Best" endurance XC race bikes? I'm looking at doing 3-4 of the NUE 100 mile events next year, Kokopelli in a day and other long rides. Current bike is a 2022 Pivot Mach 4 that I like but I'd love slightly more progressive Geo and just a fresh bike as this one has a lot of miles. Short list is currently New Mach 4, Epic 8, Allied BC40 but anything else people really like? Bikes like the Revel Ranger are cool but I'm looking for a lighter frame and a bit firmer suspension design.

There are new Shimano groups in the wild. Pinkbike has already released photos of the new brakes, and builders/manufactures are under a super heavy embargo with the new Shimano drivetrain stuff.
In a recent podcast with Gerald from Open Cycles, there was much discussion around their new frame and whether it will accommodate a UDH hanger, and he keep saying that it will accommodate SRAMs UDH needs as well as the new need for "the other" company. They joked that that's enough they can say without getting in too much trouble.
I know for a fact that Rocky's Element C90 and C50 with be spec'd with Shimano drivetrain and brakes. This is directly from someone inside Rocky, but that all that can be said for now.

[jm2e]

I’m so looking forward to bikes that force us to do headset routing and force us to use $900 electronic derailleurs. Maybe we can get a new BB “standard” too!


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[funkendrenchman]

I just lost my ProDeal, so something good must be coming...

A brake with a static bite point?

[Tailwind]

**Wireless brakes with a e-daptable bite point that optimizes bite points based on sensors on your wheels.

A brake with a static bite point?

[ghosthop]

Maybe a post for the fatherhood thread.

Does anyone know if there is a difference beyond the weight/seat shape between the frame mounted Thule Yepp 2 Maxi and Yepp Nexxt 2 Maxi? I've read on at least one mommy blog that the frame mounted versions have some suspension and that the heavier Y2M has more suspension than the YN2M.

[D(C)]

The extender (Air Valve Adapter) is $6 at Universal Cycles.
I might have an extra one if you need.


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It’s a bit annoying, but you can fairly quickly remove the revive assembly that’s blocking the air valve, if you don’t have the valve adapter. See page 21 of the manual.

https://bikeyoke.com/media/c4/cd/55/...5GMtEAWk40-Nnp