Ask the experts

[grskier]

So, one of my last rides in fall I had to lay my bike down in a rock garden. I bent the rear brake lever (right, 'cause america).
It's this:

Shimano XT BL-M8000 Right Brake Lever Member Unit

They, like everything else are out of stock seemingly everywhere.

Anyone have one in their parts bin?

If not, it looks pretty damn similar to the xtr and slx versions of the same thing, if, by some miracle I find one of those in stock, does anyone know if I can swap that out?

[El Chupacabra]

So, one of my last rides in fall I had to lay my bike down in a rock garden. I bent the rear brake lever (right, 'cause america).
It's this:

Shimano XT BL-M8000 Right Brake Lever Member Unit

They, like everything else are out of stock seemingly everywhere.

Anyone have one in their parts bin?

If not, it looks pretty damn similar to the xtr and slx versions of the same thing, if, by some miracle I find one of those in stock, does anyone know if I can swap that out?

Just the lever is damaged, nothing else?

https://www.jensonusa.com/Shimano-XT...ake-Lever-Unit

[HAB]

Just the lever is damaged, nothing else?

https://www.jensonusa.com/Shimano-XT...ake-Lever-Unit

EDIT: I take it back. Shimano lists those as a "B" fit for the M8000, i.e. compatible but may differ slightly in terms of finish and whatnot.

[grskier]

Just the lever is damaged, nothing else?

https://www.jensonusa.com/Shimano-XT...ake-Lever-Unit

Just the lever. those were some of the others I had seen as well.. M785 vs M8000

Thanks.

[XXX-er]

I was told Shimano is the choke point for bike mfgers

normaly they order something they get it in 60-90 days

right now the forecast is 200-400 days

[grskier]

I was told Shimano is the choke point for bike mfgers

normaly they order something they get it in 60-90 days

right now the forecast is 200-400 days

I'll give whatever is in stock a try then

I've heard the same.

[HankScorpio]

I know you just need a lever but I have a new SLX M7000 right/rear unit. Happy to sell you the whole thing for cheap.




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[LeeLau]

I'll give whatever is in stock a try then

I've heard the same.

If you can wait for a week or so I can look at a spare lever I have. I know its Xt but don't know the side.

[scharny]

...If not, it looks pretty damn similar to the xtr and slx versions of the same thing, if, by some miracle I find one of those in stock, does anyone know if I can swap that out?

If the lever and caliper are both pretty recent, your only limiting factor for mixing SLX/XT/XTR should be hydraulic brake hose diameter. As long as it’s the same on both you *should* be fine.

[jm2e]

All the Shimano levers will work. You’ll need a new olive & barb.

But you really should try bending that thing back. Use a handlebar or PVC pipe and go slow. I’ve have great success bending brakes back to useable.


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[smmokan]

I was told Shimano is the choke point for bike mfgers

normaly they order something they get it in 60-90 days

right now the forecast is 200-400 days

Not necessarily true... IME, Shimano has the shortest lead times on a lot of parts when it comes to putting together builds, at least when using my connections. SRAM/RockShox is the worst culprit by far. For instance, SLX 4-piston brakes are out until March, but G2 RSC isn’t available until October. It just all depends on who ordered what and how much, meaning bike companies/distributors/retail sellers. Regardless, it’s a fucking shit show. I had to get super creative with things in order to have demo bikes (supposedly) ready by next spring.

I wonder if we’ll see fewer new bike launches next year because of this?

[jamal]

Although shimano's lead times haven't exactly been accurate. Like, in august the eta for a lot of shimano parts was oct-nov and now some of that stuff is listed as far out as next summer (an slx rear derailleur for example). Many things are supposedly arriving pretty early next year though.

I'm slightly concerned about getting a new bike or two next year but it's the shops that probably need to be the most worried about having anything to sell. At one point last year my lbs had about 3 new mtbs on the floor plus a couple road and gravel bikes.

[Whiteroom_Guardian]

Who's done a VO2 max test before? I am scheduled for one the first week of January.

[tellybele]

I did years ago in exchange for being involved in a health and human performance study a buddy was wondering on. I don't have the results anymore but remember that I fell within the bell curve; I was/am right at average. He said at most I could increase it somewhere in the vicinity of 10%. He advised me to work on my lactic acid threshold. I did it on a trainer with Johnny Cash cranked. It was fun! I don't know if the numbers I posted above RE: percentage, etc are still valid? That was 25 yrs ago and current science might say different 'things'. Have fun!

[climberevan]

I have done VO2 tests twice. The first was in college for some study, and the second was in my late 20s for a different college study. This one also included a lactic acid prick test, which was cool.

My numbers were pretty different from one to the other, even though I was prob similarly fit. The earlier one was near sea level, and the second one was at 8k, so I think that accounts for most of it.

The only really interesting takeaway for me was that in the second test I my numbers were in line with the faster members of the CC running team at Western State, but I am not much of a runner and when I tried to run with them they always dropped me like a sack of potatoes, especially on the flats. That's when I really appreciated what I now call "real runners", which I think has as much to do with biomechanics as aerobic capacity.

[grskier]

If you can wait for a week or so I can look at a spare lever I have. I know its Xt but don't know the side.

Rad. Let me know, i only need the lever now when I'm being an idiot on the trainer...

[Whiteroom_Guardian]

Yeah I am doing the VO2 testing with a local cycling/MTB physio who is also a coach. Trying to get some structured training going on as I gear up for enduro race season. I need to podium again.....I feel like my only other podium was just luck or something as I wasn't particularly fit, but riding well enough I guess.

This is probably a better question for the physio, but big toe pain from cycling? Only my left toe, only when riding the indoor trainer, so I am guessing it's the shoe/cleat setup? Kinda like bad turf toe or something.

[tellybele]

Are your feet different in terms of width and length? Mine are almost 2 sizes different in length and about the same physical width but different in width in terms of sizing due to the ratio difference. 15 hrs of cramming my larger foot in climbing shoes left me with neuroma and exacerbated my turf toe tendencies.... Wider forefoot shoes with aftermarket footbeds or actual orthotics might help?

[EWG]

Yeah I am doing the VO2 testing with a local cycling/MTB physio who is also a coach. Trying to get some structured training going on as I gear up for enduro race season. I need to podium again.....I feel like my only other podium was just luck or something as I wasn't particularly fit, but riding well enough I guess.

This is probably a better question for the physio, but big toe pain from cycling? Only my left toe, only when riding the indoor trainer, so I am guessing it's the shoe/cleat setup? Kinda like bad turf toe or something.

My wife had to do yearly VO2 max testing for a job that included hazmat work (scientist) so they could get a baseline and see if it changed year to year. Small woman, huge VO2 max, super low heart rate. She's essentially all lung and leisure. Rides like that too. Anyway, any specific questions about it? I'm not sure it makes too much sense to test it since you really can't alter it much.

Toe - does it hurt when you are not cycling? When did it start? Toe problems that result from cycling are unusual, but usually are result of foot tension due to your foot not being in the right position relative to the pedal spindle. More often they are not from cycling, but rather happen somewhere else and then show up cycling. Bunions, turf toe (like you mention), sprains for example act like that. Did you hurt it off the bike? Did you smash your foot into something while on the bike?

[XtrPickels]

Yeah I am doing the VO2 testing with a local cycling/MTB physio who is also a coach. Trying to get some structured training going on as I gear up for enduro race season. I need to podium again.....I feel like my only other podium was just luck or something as I wasn't particularly fit, but riding well enough I guess.

This is probably a better question for the physio, but big toe pain from cycling? Only my left toe, only when riding the indoor trainer, so I am guessing it's the shoe/cleat setup? Kinda like bad turf toe or something.

I've conducted ~5,000+ Physiology tests and completed 30+ on my myself.

Ultimately for enduro racing a high VO2 max is helpful. Knowing your baseline VO2 max can help establish if training has elicited a change (assuming your test again after training). However, knowing your VO2max does not necessarily aid in improving your performance.

1. Who / where are you having it done?
2. What exactly is being done?
3a. Are you working with them for coaching?
3b. How will they utilize the information to improve your training?

[XtrPickels]

Question:

Would anyone be interested in a physiology / training / biomechanics Zoom session?
If the group decided on a topic(s) I'd be happy to put together a lil presentation and Question / Answer session for the group.

[mall walker]

Off the top of your heads: having trouble shifting into harder gears from 11th and 9th gear on an 11spd GX derailleur / sunrace cassette. Since shifting into 11th (and back into 1st) are not a problem, am I right thinking this is not the limit screws? What should I look at here. I gotta eke a few more months out of this bike still before I upgrade and this is annoying as shit.

[bean]

Question:

Would anyone be interested in a physiology / training / biomechanics Zoom session?
If the group decided on a topic(s) I'd be happy to put together a lil presentation and Question / Answer session for the group.

I would. I'd mostly be interested in what you think is interesting and worth knowing, also your take on the TFTNA/UA extreme emphasis on super low intensity work.

[nickwm21]

Off the top of your heads: having trouble shifting into harder gears from 11th and 9th gear on an 11spd GX derailleur / sunrace cassette. Since shifting into 11th (and back into 1st) are not a problem, am I right thinking this is not the limit screws? What should I look at here. I gotta eke a few more months out of this bike still before I upgrade and this is annoying as shit.

How old is your shift cable?


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[forty]

Off the top of your heads: having trouble shifting into harder gears from 11th and 9th gear on an 11spd GX derailleur / sunrace cassette. Since shifting into 11th (and back into 1st) are not a problem, am I right thinking this is not the limit screws? What should I look at here. I gotta eke a few more months out of this bike still before I upgrade and this is annoying as shit.

top of my head answer...
b screw limit needs to be increased

when dumping multiple gears there is enough gap between der and cassette to not bind
when shifting a single gear the b screw is placing the der arm too close to the cassette and binding as it tries to shift over

increase the distance from the der to the cassette with the b screw until you have a few mm clearance in all gears

no refunds if wrong...