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-   -   Trek 920 (https://www.bikeforums.net/touring/1043648-trek-920-a.html)

mstateglfr 02-15-16 12:52 PM


Originally Posted by johnbort2 (Post 18538549)
For those that are more seasoned touring folks than me, I have a sincere question.... Would a pull behind trailer, with maybe just front panniers negate any possible impact of 28 spoke wheels? I am heavier than a lot of folks on here probably..215. What about a trunk bag on rear rack, front panniers and then a bob trailer or something like that? Would that alleviate any possible strength issues on the rear wheel. Thanks in advance.-John I was going to buy front and rear Arkel Panniers, but thought I could probably get a trailer instead.

A trailer will take the weight off the wheels, absolutely. I have no idea if itll make these specific wheels usable for what you want at your size. I am heavier than you, so I understand being wary of equipment that wont hold up to use.
For what its worth, bob trailers handle something like 75lb of gear...you could probably not even need front bags if you used a bob.

johnbort2 02-15-16 12:58 PM


Originally Posted by mstateglfr (Post 18538571)
A trailer will take the weight off the wheels, absolutely. I have no idea if itll make these specific wheels usable for what you want at your size. I am heavier than you, so I understand being wary of equipment that wont hold up to use.
For what its worth, bob trailers handle something like 75lb of gear...you could probably not even need front bags if you used a bob.

Thanks for the replies. I wasn't worried at all till I started reading these threads, now I am not so sure...lol At this point, I can't have 36 spoke wheels built and still be able to get all the touring stuff by May. I am going with a buddy and we will be on the GAP/C&O, so I won't be on any remote roads and trails.

mstateglfr 02-15-16 01:24 PM


Originally Posted by johnbort2 (Post 18538591)
Thanks for the replies. I wasn't worried at all till I started reading these threads, now I am not so sure...lol At this point, I can't have 36 spoke wheels built and still be able to get all the touring stuff by May. I am going with a buddy and we will be on the GAP/C&O, so I won't be on any remote roads and trails.

maybe have the shop you buy the bike from tension and true the wheels when you buy the bike? Or if you have it, take the wheels into a shop and have them properly tension the wheels?
The biggest downside to machine built wheels(except for very expensive ones) is that spoke tension is not consistent. Ive read about a machine at some wheel factory in Europe which can tension wheels as well as anyone, but most wheels for this type of bike and less dont have the same level of quality and precision.

You with a bob is effectively like just you on the bike riding the path. I am far from an expert which is why I stick to higher spokes if at all possible, so im better safe than sorry. But if time doesnt make a swap possible, then bring this if a spoke actually breaks and have fun. Amazon.com : FiberFix Emergency Spoke Replacement Kit : Bike Spokes And Accessories : Sports & Outdoors

johnbort2 02-15-16 01:30 PM


Originally Posted by mstateglfr (Post 18538658)
maybe have the shop you buy the bike from tension and true the wheels when you buy the bike? Or if you have it, take the wheels into a shop and have them properly tension the wheels?
The biggest downside to machine built wheels(except for very expensive ones) is that spoke tension is not consistent. Ive read about a machine at some wheel factory in Europe which can tension wheels as well as anyone, but most wheels for this type of bike and less dont have the same level of quality and precision.

You with a bob is effectively like just you on the bike riding the path. I am far from an expert which is why I stick to higher spokes if at all possible, so im better safe than sorry. But if time doesnt make a swap possible, then bring this if a spoke actually breaks and have fun. Amazon.com : FiberFix Emergency Spoke Replacement Kit : Bike Spokes And Accessories : Sports & Outdoors

Cool, thanks so much. I didn't know that there was such thing as an emergency spoke replacement kit. I appreciate the help.

mstateglfr 02-15-16 01:41 PM


Originally Posted by johnbort2 (Post 18538674)
Cool, thanks so much. I didn't know that there was such thing as an emergency spoke replacement kit. I appreciate the help.

Yeah, I have one tucked away when we do anything from long day trips to overnight and more. Knock on wood, I havent used it and hopefully never will, but from what I have seen and read, its significantly easier to replace a drive side spoke with this instead of an actual spoke since no tools need to be brought along to remove the cassette.
Some posters here have used the fiberfix and said it worked great.

johnbort2 02-15-16 01:50 PM

Better to have it and not need it for sure!

Lt Stonez 02-15-16 02:30 PM


Originally Posted by mstateglfr (Post 18537962)
Sarcasm notwithstanding, you know what the term describes and you started a thread on the term a couple months ago and it was explained very well. http://www.bikeforums.net/touring/10...avel-bike.html
This also is around when you began deriding the activity by mockingly calling it 'grrrrravel grrrrrrinding' for some reason.

Neither your hybrid nor your mtb are inadequate. Nobody has claimed they are(except you, sarcastically) and in fact I specifically mentioned youve been doing the very thing that is currently a niche, so clearly that upright hybrid of yours works quite well.

You claim that such a style of riding demands a new bike, but that isnt accurate and you are smart enough to know it isnt accurate, so why even make the claim? While it doesnt demand a new bike, a new bike may be beneficial. If someone has a couple road bikes which max out at 25c tires and have road double gearing, that is probably not conducive to ride many of the types of gravel around the country as the tires would jump and deflect all over the place. Plus, the more aggressive frame geometry may not be comfortable for 3 hours of bumpier riding. So in this instance, a different bike would be a good decision, assuming they want to dedicate the time to make the purchase worthwhile.


I could ride my road bike on some rolling single track and do most of it, but that isnt close to ideal. Instead, a mtb with lower gearing, a higher bb, and some fatter tires will make the experience more enjoyable.
Apply that to riding on gravel.
You do it with a hybrid. I do it with near 25yo hybrid converted with some drops. Others do it with CX bikes. Others do it with the currently popular all around drop bar bike frames. Riding on gravel can obviously be done with many different types of bikes. But that doesnt mean there shouldnt be a genre of bike which is marketed for gravel.



I dont expect any of what I just typed to change your mind because it appears you are proud that you do things differently from the lemmings who follow the latest trends in cycling mags. I just dont understand the vitriolic mockery directed towards those who dont conform to your view of how cycling should be.

But that doesnt mean there shouldnt be a genre of bike which is marketed for gravel.

Though CX bikes did that job? Gravel bikes maybe have more endurance frame form with bigger tires, is that al that is different?

mstateglfr 02-15-16 02:46 PM

I think we are in agreement- My point has been that its completely acceptable for a gravel market to exist.
Yes, CX bikes are similar to gravel bikes and the line between CX and gravel is quite blurry.

I dont ride CX and I dont own a bike that was marketed as a gravel bike, so take this for what its worth- CX are often times road bike geometry with a higher bb compared to gravel bikes which typically have slacker geometry and a lower bb when compared to CX.
Pretty slight differences since not all bikes fall neatly into one or the other category.


I am all for multiple segments of cycling as it furthers innovation and allows for more options and customization.

Labels are everywhere in life. Some people accept them. Some people dismiss them. Some people rage and fight against them. Its the same in cycling. Some accept the different categories. Some ignore the categories and choose what they want for what they want to do. Some fight against the categories despite it ultimately being a futile and meaningless fight.

PhotoJoe 02-15-16 06:45 PM

MOD NOTE: After reading through the last few pages of this thread, it's clear that some are pretty frustrated. Let me take this opportunity to remind everyone of the rules we all agreed to abide by when signing up to participate here. DO NOT MAKE IT PERSONAL. Feel free to discuss issues, however, do not take it to the point that you're discussing the member. That is harassment and will not be tolerated. If you don't have the ability to control yourself and abide by the rules, please use the ignore feature of the forum.

Doug64 02-15-16 07:15 PM


Originally Posted by janine1 (Post 18530492)
if the whole wheel broke with multiple spokes out I would walk, just like if my chain broke. lol I'm a runner so going 10-20 miles is no problem other options include riding sag, taking taxi or bus, call friend or family.

I've been in places where none of the above were possible. bottom line: the gear needs to match the conditions.

Most long distance riders are prepared to fix a broken chain with a chain breaker and a "quick link".

On the other hand, poor decisions make for great stories:).

saddlesores 02-15-16 08:51 PM


Originally Posted by mstateglfr (Post 18537962)
a lot of good stuff.

guess i'm just annoyed at the marketing......taking your basic
riding on dirt/gravel roads and packaging it as something
breathtakingly new....and then convincing the customer to
pay twice as much for a bike with half the capability of
what's already on the market and perfectly suited to the
activity.

but i'll shut up for now...


johnbort: trailer won't take all the weight off, you've still got
some weight on the axle where the bob is attached. probably
not a simple 50/50 distribution, depends on how you load the
trailer.

you've already got 215 over the rear. better to move some
weight up front and skip the rack trunk. handling will then
be different. you may like it, or not.

edthesped 02-16-16 08:16 AM


Originally Posted by Doug64 (Post 18539469)
.......
On the other hand, poor decisions make for great stories:).

Then I should be the greatest story teller of all time!

johnbort2 02-16-16 08:22 AM


Originally Posted by saddlesores (Post 18539673)

johnbort: trailer won't take all the weight off, you've still got
some weight on the axle where the bob is attached. probably
not a simple 50/50 distribution, depends on how you load the
trailer.
you've already got 215 over the rear. better to move some
weight up front and skip the rack trunk. handling will then
be different. you may like it, or not.

Ok, that makes sense. I will be doing some riding with the bike loaded for training in advance of the trip. I will try to work out the kinks and get used to the setup. Thanks!
One more thought...the rear panniers are 40l and the front 28...if I can fit the rear panniers on the front and just have the 28's lightly loaded on the rear rack, that would lessen stress on the rear. That is assuming I can still steer the bike..heh

Squeezebox 03-10-16 10:05 AM

Several people mentioned negative comments about the saddle on the 920. Please explain why. It seemed fine to me on a short test ride, but that's way different that multi hours multi days.
Thanks!

rex615 03-10-16 10:23 AM


Originally Posted by Squeezebox (Post 18598394)
Several people mentioned negative comments about the saddle on the 920. Please explain why. It seemed fine to me on a short test ride, but that's way different that multi hours multi days.
Thanks!

Saddle choice is a very personal thing because everybody butt is different. If it feel good to you, then it is a good saddle for you. Just be sure to test it out for a longer ride.

mstateglfr 03-10-16 10:41 AM


Originally Posted by Squeezebox (Post 18598394)
Several people mentioned negative comments about the saddle on the 920. Please explain why. It seemed fine to me on a short test ride, but that's way different that multi hours multi days.
Thanks!

I see 1 mention in this 8 page thread that suggestion the saddle will need to be swapped. Who are these several people and what area ll the negative comments about this specific saddle?
The 1 mention I do see reads like a general acceptance that the saddle will need to be swapped out because thats what is often done with stock saddles.- And if you consider that the wheels are way too lightweight in terms of spokes for decent touring and you'll still need to swap the saddle it's a lot more expensive than just 2k.

I would be interested to read all the negative comments that have been made about this specific saddle. Please post them.

After you post all these comments, ignore them. Who cares what everyone thinks about something which is so individual like a saddle? What is good for one person may be terrible for many others when it comes to a saddle. Its why an inexpensive saddle is often times used as stick equipment...why would a company attach an expensive saddle when they can attach a cheaper one and keep the price lower since the saddle may be switched?
If the current saddle fits you, then great. If it is uncomfortable after 10 or 20 or 30mi then try some other saddles which would possibly fix what hurts and where. Bike shops often have test saddles you can check out before buying.



Wilfred Laurier 03-10-16 10:57 AM


Originally Posted by mstateglfr (Post 18598515)
the wheels are way too lightweight in terms of spokes for decent touring

Has there been any actual evidence or report of those wheels failing? Or is this just an assumption based on the fact that sub-32-spoke wheels are bike-touring heresy?

mstateglfr 03-10-16 11:06 AM


Originally Posted by Wilfred Laurier (Post 18598579)
Has there been any actual evidence or report of those wheels failing? Or is this just an assumption based on the fact that sub-32-spoke wheels are bike-touring heresy?

I dont know, that is from the quote that I found which referenced the saddle needing to be replaced. I didnt type that. I should have used "" around the red bold italicized wording to show that was the quote.

Wilfred Laurier 03-10-16 11:09 AM


Originally Posted by mstateglfr (Post 18598617)
I dont know, that is from the quote that I found which referenced the saddle needing to be replaced. I didnt type that. I should have used "" around the red bold italicized wording to show that was the quote.

Oh. Thanks for the clarification. I kinda thought that might be the case. Who was the poster who said that, if you can recall?

elcruxio 03-10-16 12:18 PM


Originally Posted by Wilfred Laurier (Post 18598625)
Oh. Thanks for the clarification. I kinda thought that might be the case. Who was the poster who said that, if you can recall?

it was me. And I stand by it. The wheels are too lightweight for what the bike is marketed for. If the rim was a seriously heavy duty radially extremely stiff specialty rim and the spokes were triple butted it might be worth considering, but since the spokes are apparently not even butted but straight gauge and the rim is a lower mid range MTB rim (bontrager no less) there's no snow balls chance in you know where for those wheels to survive 4 pannier off road touring (that is what the bike is marketed for).

Honestly 36 spokes with rear panniers on fire roads and rough surfaces with 700c rim size is kinda pushing the envelope, especially if the rim is not a very stiff one. That's why on offroad touring frame bags and very light loads on the rear rack are a much more sensible choice. even with 32 spokes the slackening of the lowest spokes is a bit worrying, 36 spokes starts to have small enough gaps between the spokes to take great rear loads on gravel and if one wants to go offroad 26" rim is a must as the gaps between the spokes of the 36 spoke wheel are tiny.

Wilfred Laurier 03-10-16 12:49 PM


Originally Posted by elcruxio (Post 18598831)
it was me. And I stand by it. The wheels are too lightweight for what the bike is marketed for. If the rim was a seriously heavy duty radially extremely stiff specialty rim and the spokes were triple butted it might be worth considering, but since the spokes are apparently not even butted but straight gauge and the rim is a lower mid range MTB rim (bontrager no less) there's no snow balls chance in you know where for those wheels to survive 4 pannier off road touring (that is what the bike is marketed for).

Honestly 36 spokes with rear panniers on fire roads and rough surfaces with 700c rim size is kinda pushing the envelope, especially if the rim is not a very stiff one. That's why on offroad touring frame bags and very light loads on the rear rack are a much more sensible choice. even with 32 spokes the slackening of the lowest spokes is a bit worrying, 36 spokes starts to have small enough gaps between the spokes to take great rear loads on gravel and if one wants to go offroad 26" rim is a must as the gaps between the spokes of the 36 spoke wheel are tiny.

Do you have any evidence or reports of the wheels actually failing?

indyfabz 03-10-16 01:05 PM


Originally Posted by elcruxio (Post 18598831)

Honestly 36 spokes with rear panniers on fire roads and rough surfaces with 700c rim size is kinda pushing the envelope, especially if the rim is not a very stiff one.

I am about 215 lbs. and don't go ultralight. Sounds like I should work for the postal service cuz I have ridden hundreds of miles of dirt/gravel/rock roads with rear panniers on the stock Alex Adventurer 700c wheels that came with my '11 LHT. Some of those miles have been jar-your-fillings-loose miles. Planning to ride at least another 80 in Montana in June. Haven't broken a spoke yet. In fact, I think the wheel has only been trued once or twice.

elcruxio 03-10-16 01:42 PM


Originally Posted by Wilfred Laurier (Post 18598918)
Do you have any evidence or reports of the wheels actually failing?

Let's put it this way. I don't have evidence of 16 spoke rear wheels breaking spokes with heavy offroad touring either. But for you it likely will not matter. Why wouldn't 16 spoke rear wheels work if a manufacturer were to put them on a bike

I only really have my experience and knowledge of reading up on the subject and doing my own bike mechanics and building my own wheels and others for the last 10 or so years. And I'm not saying 28 spoke wheels can't work if they're well enough specced. I'm saying the trek 920 wheels aren't well specced. And I do have experience with bontrager rims. Crappiest rims I ever built, man those were horrid.

elcruxio 03-10-16 01:46 PM


Originally Posted by indyfabz (Post 18598969)
I am about 215 lbs. and don't go ultralight. Sounds like I should work for the postal service cuz I have ridden hundreds of miles of dirt/gravel/rock roads with rear panniers on the stock Alex Adventurer 700c wheels that came with my '11 LHT. Some of those miles have been jar-your-fillings-loose miles. Planning to ride at least another 80 in Montana in June. Haven't broken a spoke yet. In fact, I think the wheel has only been trued once or twice.

The adventurer is a really good rim though. And you've had it trued. In my books a need to true is the beginning of the end and a failure in itself. It means something has given or has loosened which depending on various factors can either be relatively minor or near catastrophic

fietsbob 03-10-16 01:52 PM

Spring is only 5 more pages on this topic away I Suppose ..


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