Bontrager Releases $350 Line Comp 30 Alloy Wheelset - Pond Beaver 2021

Apr 16, 2021 at 8:43
by Daniel Sapp  

Bontrager have released their newly updated Line Comp 30 TLR alloy wheels today. The wheels build on Bontrager's Line group of wheels and are designed for aggressive trail riding. They feature a 29mm inner rim and Rapid Drive 108 hub.

The all-new alloy G609 rim is made out of the same material Trek's Factory DH team's rims use. It's made to be strong, durable, and capable of handling a variety of riders and terrain. It has a shallow 20mm depth and a 29mm inner rim width to keep the rim strong yet still offer compliance. The Rapid Drive 108 hubs have, you guessed it, 108 points of engagement for quick acceleration. That equates to 3.3 degrees between engagement points, a figure typically found on higher end hubs. The wheelset comes ready to set up tubeless with Bontrager's TLR rim strips, valves, and sealant.

The wheelset is available in both 27.5" and 29" options with an XD driver as standard. Microspline and Shimano HG drivers are available separately. The 27.5" wheelset weighs a claimed 1790g/set and the 29" version is 1955g. Both wheelsets sell for $349.98 USD.

More information can be found at

Pond Beaver 2021


  • 34 0
 I haven't seen any of the hubs fail yet but I have seen that they gave poor sealing and could be cleaned out a bit more often then average. My friend's had a set for 2 years rides at least twice a week and weighs well over 200lbs. I've had 3 sets no problems.
  • 10 0
 2 have come into the shop with failures in the last year, although my 2 have been just fine. They work great for me! We sell only Trek bikes, but not a ton of high end mountain. We still have quite a few of these hubs sold and they have mostly been fine...
  • 6 1
 @DAN-ROCKS: just curious: 2 versus how many of other brands/other hubs?
  • 1 0
 (Sorry my question was meant for @blk91)
  • 5 0
 @escay: Good point, we sell probably 20 hybrids per high end mountain bike that comes specced with these hubs. We only sell trek. I can only speak for our location. We build/sell one a week or maybe every other week I'd say? Oh, I didn't see it was meant for him. Still, there's my info^
  • 3 0
 I'm a big guy and I hammer a lot of wheel sets, I've ruined two rims, but no hubs yet. I'm only running the 54 poe version, but it doesn't really matter since the 108 is just another set of pawls on the same free hub body. I just put a set of Kovee 23 carbons on my commuter and they seem to be holding up well, too. I've got three seasons and about 2000mi off-road on the set. The biggest issue I have is a weird "click" from the front hoop that developed. It's not in the hub, and there isn't a loose nipple in the rim, so I'm assuming the sleeve at the joint is moving around a little, they're welded rims, so it's not critical, just a bit annoying.
  • 1 0
 @BikesBoatsNJeeps: You got it right with the sleeve at the joint moving. It's a pretty common problem with the Line Comp wheels. There are a few fixes you can google up.
  • 2 0
 @cjonesmtb: the thought had crossed my mind to pull the rim strip next tire swap and use a prick punch to dimple the rim bed at the joint, but that typically ruins the rims strip so I'm not that motivated.
  • 1 0
 @BikesBoatsNJeeps: I had this same sanity testing click, I ended up removing the rim strip and doing my own with rim tape and it went away, never exactly ws able to figure out where it came from. Super annoying!
  • 2 0
 @DAN-ROCKS: Have u beenable to get any bikes this year
  • 1 0
 Had a set fail. The drive ring inside the hub wheel separated from it and then just spins inside the hub.
  • 1 0
 @Kimura: kids bikes and e-bikes otherwise we're filling backorders with every bike that arrives.
  • 3 0
 @cjonesmtb: Trek will warranty the wheel and I have seen that happen once with the Sleeve coming loose in the rim. Seen 2 of the drive rings fail. The shop I am at is a top 10 Trek dealer, I have seen a handful of issues out of 1000's of wheels. If you have that bad luck and have an issue, Trek stands behind it and you'll get a replacement. Solid products IMHO
  • 1 0
 The fatbike ones fail constantly.
  • 1 0
 @Kimura: yeah special orders from a long time ago have been coming in, and a bunch of bikes that we ordered whenever we could. Every time bikes are available to be bought, we buy them. So those have been trickling in
  • 30 0
 Even with the possible hub issue, I'd still take a chance on these for $350 if my current wheels break.
  • 10 2
 I have been left stranded too many times by this hub. One of those "fool me 7 times" type of situations. I wouldn't ride these hubs if someone paid me $350.
  • 21 0
 I'm one of those frugal mountain bikers who's tried multiple cheap wheelsets and finally have realized that good hubs are worth their price in longevity and not having to deal with the hassle of shredded pawls, stripped drive rings, roasted bearings, etc.

DT350 / Hope / etc. for life. Never trying out the cheaper stuff again, it always ends up being more expensive and way more of a hassle in the long run. When you buy cheap, and warranty it three times, and STILL end up buying the expensive hub, you've done bamboozled yourself.
  • 2 1
 @rickybobby18: I have no idea what you're talking about
  • 3 0
 @rickybobby18: exactly this. I bought a well reviewed and recommended British budget brand and after 20 rides the freehub and bearings on the rear were completely shot. The did send me replacement parts FOC but I'll be sticking with 350's built up by my local shop from this point onwards!
  • 2 0
 @hamncheez: I see you share my affliction
  • 2 0
 @halr75: Which brand is that? HUNT?
  • 2 0
 @kev-bike: But seriously. “Too many times?” After the 2nd, why didn’t you ditch it forever? Regardless of any warranty.

That said, $350 for a wheelset? Let’s see some more pricing like this in the industry!
  • 1 0
 @PaulWolf: Going to guess Nukeproof... will say my V1 Horizons have held up just fine.
  • 15 0
 Pinkbike Posts: “Everyone is raising their prices and only dentist can afford anything.”

Trek’s Response: “Hold my beer and watch this.”
  • 1 5
flag VtVolk (Apr 16, 2021 at 12:07) (Below Threshold)'s almost as if Trek and Pinkbike have some kind of multiplatform/integrational type financial relationship going
  • 13 0
 @VtVolk: So Trek manipulated the entire bike industry to raise their prices ~10%, so that Trek could look good by releasing a budget wheelset? Or should PB not have reported on pricing changes at all?
  • 5 0
 Well, previous version of the Line 30 Comp wheelset was $300 usd. While it was 54t only, your could order extra 3 pawls and springs from Trek and convert to 108t for about $25.
  • 1 0
 @kryten: I did exactly that. A great cheap upgrade with lightening-quick engagement.
  • 25 13
 "The all-new alloy G609 rim is made out of the same material Trek's Factory DH team's rims use"

I'm gonna have to steal that logic

"yeah my coke can is made from the same material that pro downhillers use in their rims"
"I don't mean to brag, but, like formula 1 cars my tires are made of rubber"
  • 20 2
 I think that's an oversimplification.
  • 2 1
 Good catch! That wording is a little misleading imo.
  • 13 0
 not really a fair point, because aluminum comes in so many different types, for instance 7071, or 6066, etc. so to try and make the comparison "yeah my coke can is made from the same material that pro downhillers use in their rims", is invalid, even if its oversimplifying it.
  • 15 0
 My favorite, long standing go-to marketing term is Aircraft grade aluminum...
  • 12 0
 @EricLanglais: Military Spec is my favorite. If only they knew...
  • 1 0
 @EricLanglais: Well, there is scandium. Used in MIG fighters and other aircraft IIRC
  • 3 0
 @EricLanglais: "Space age". So it's from the 60s?
  • 2 0
 @m1dg3t: you could by scandium rims from Bontrager in the past, they were pretty pricy though, and Niner had scandium frames for a while, which all cracked.
  • 3 0
 No mention of "stealth" or "tactical" in the article. Missed opportunity.
  • 1 0
 @ltharris: I think the point still stands that the statement was overly-vague.
  • 2 0
 @NateMob: This is true.
  • 2 0
 @BikesBoatsNJeeps: My old Kona is Scandium too. Still going strong. Frame cracking must be a Niner thing?
  • 1 0
 @m1dg3t: maybe? I'm sure scandium is like most Al based alloys and is very sensitive to proper heat treating or any kind of cyclical loads.
  • 2 0
 I recall that Diamondback called their alum alloy weapons-grade back in 2010 (Sortie model). Was 6061-T6...

6066-T6 is premium and 6069-T6 moreso. They cost quite a bit over 6061-T6. If Trek said 6069, rather than make up a name that sounded like it, that would've given me a better impression. It's what Stans's premium rims are made of, compared to their S1 rims (6061-T6, which is softer). Same goes for RaceFace's AR and ARC too. Some people here think 6061 is so soft that it's made of cheese.

DT rims that have two letters (EX, XM, etc) are premium in some form. WTB ST, Frequency, and KOM are different quality levels too, with ST being a much softer material than the kind used in KOM (WT69?). These brands don't report the material used, AFAIK.
  • 2 1
 @Varaxis: my WTB kom rim I used on my CX bike dented immediately. I swapped to a Stans Grail Mk3 and haven't had an issue. I pulled the KOM off and it had no less than 5 pretty major dents and a bunch of smaller ones. The grail has held up extremely well comparatively.
  • 19 7
 Have they figured out how to stop that hub from detonating?
  • 10 0
 I haven't had any issues with the hub after putting 2k miles on it or so. I just ordered this version because I dented my wheel to crap after riding through a rock garden with too low PSI. It was cheaper to just order the wheel with the hub than to order the rim and have a shop lace up the old hub.
  • 4 1
 I've heard at least a handful of people wrecked their 54/108 rapid drive hubs within a few weeks of buying a Fuel. I was one of the lucky ones, but I bought my Fuel ex 8 as a barely used demo bike and the shop had that thing dialed and silent. Never had a problem with that bike
  • 5 0
 Rode mine for 2500 hard miles with no maintainence, hub was built into a DT rim, so no issues there. Sold the bike on, its still probably laying on the miles without issue. YMMV.
  • 3 5
 Those hubs are garbage - I've gone through 2 in the last 2 years. Too bad, because the rest of the wheel is indestructible. Fix that hub and you've got a winner.
  • 2 0
 Add me to the list of having the hub dying (covered under warranty), as well as the rim not being up to the task of supporting aggressive riding. Dented first ride, and again the warranty replacement. Not sure how much being 28 spoke factors in to its strength ...

I did like the hub engagement though, and might be a good wheel for a lighter rider.
  • 6 8
 @bicyclelifestyle: Let’s hope the rims are better than they were. They were some of the softest cheese in the business. I mean off course they are strong because how could we prove that they aren’? What am I supposed to do, wait a few years for feedback, don’t insinuate anything and... not comment now? Damn right I will comment! Stick to tires Bontrager!
  • 3 0
 @atomicspike: Yeah, I had issues with the wheel denting as well. I'll probably run a bit more PSI. I want to buy some carbon hoops with a lifetime warranty, but not until I get a new bike.
  • 2 0
 Between myself and my partner we have 4 current bikes with these hubs and 2 past bikes. Only had 1 hub issue.
  • 1 0
 The gist of the issue I heard from the armchair engineers was that it was an issue with pawl sync. If one pawl was carrying the entire load, perhaps due to poor tolerances or flex, it could lead to this kind of breakage.

Hearing about how I9 arranged their pawls in their Hydra hubs, and how some hubs proudly have techy names like "DuraSync" on their hubs, I figure this problem has been around.

I got a NOS 2018 Line Elite 30 rear wheel off ebay for $250+tax that I'm about to play the tolerance lottery with. Hopefully, it was manufactured better.
  • 11 0
 At that price and spec these are almost worth getting for a second back-up set.
  • 8 1
 They're definitely a solid option. I got a set of the last Line Comps and did the 108T hub upgrade and have been enjoying them. They definitely feel "soft" with 28 spokes, but if you're not enduro bro-ing it, they're great.
  • 5 0
 The 108 upgrade is great
  • 6 0
 Looks like a great deal for a lot of riders. I still don't quite get the 28H drilling, but then again, I am just some keyboard warrior.
  • 7 0
 Are these gonna fall apart on me? They seem to good to be true...
  • 4 0
 I rode the entire Colorado Trail with the previous version on a hardtail that weighed about 55lbs with all my gear. When I finished the front was basically perfectly true, the rear had a tiny dent and was about 1-2mm out of true laterally, can't remember what radial was like.

A lot of people complain about a bad seal between the freehub body and the hub meaning the pawls are more prone to catch dirt. I didn't have a problem with this but that doesn't mean you should ignore everyone else. At least they are easy to open and clean/lube if you do have a bad seal.
  • 4 0
 Only in XD, I'll pass. $350 wheels quickly push $500 after getting the proper freehub body and pawls after shipping and taxes. Might as well go with something that has hubs that don't eat themselves for that price.
  • 1 0
 You don’t need new pawls, just the driver.
  • 5 0
 I had a hub fail on the Line Elite wheelset after only a few months of use.
  • 2 0
 I work in a bike shop (not a trek dealer) and have seen a couple of freehub bodies fail on bontrager wheels. I also know theres 10's of thousands of pairs out there with no issues. I suspect a quality control issue rather than a design flaw so could be easily fixed in the new ones.
  • 4 2
 Cool, caught my eye very quickly BUT there are two issues: only comes with Sram freehub, is you want shimano you have to add $100 for the hub; second, the freehub will come WITHOUT the pawls which are sold separate at $17 for a set of three which only gives half the 108 engagement mentioned in the article. Total for a shimano guy $484 (maybe $467 is 3 pawls can be reused from the Xd freehub). Probably Trek should start thinking about giving the option for shimano 11 and 12 version at the same price as the Sram. Lots of other options at the $500 price point if you don't run Sram.
  • 5 2
 Meh, my local Trek shop is converting it to the HG driver for $10.
  • 2 0
 Same pawls are used for both freehub bodies
  • 3 2
 SRAM XD is the objectively superior interface
  • 3 0
 @Steadite: maybe and only if you already run Sram...
  • 1 0
 @HB208: Good to know
  • 1 0
 @reilly: Good to know thnx
  • 1 0
 I have the previous version of these. Decent wheels, not worth upgrading the pawls (the added drag is noticeable, the added engagement speed is minimal). If they've strengthened the rims, that would be great-previous rims were soft.
  • 1 0
 Bontrager wheels generally seem pretty solid. Sold plenty of sets (on bikes and aftermarket) right across the price points and the few returns / issues we’ve had were all covered by warranty...
My wife and I have have a few different Bontrager wheels between us (XXX, Elites & Comps, plus various road wheels) and they’ve been great for us.
  • 1 0
 Interesting comments. For what it’s worth, I’ve put about 80 hours on the previous generation and never had one problem with them. I don’t do full-on enduro but have hit some good sized drops and pretty gnarly rock gardens and they’ve kept rolling along admirably. The 108t is is a nice update and the previous 54t can easily and cheaply be upgraded for super-quick engagement that is really noticeable on technical sections of trail.
  • 3 0
 Hopefully they are stronger than the melted butter side wall 2018 line comp 30
  • 1 0
 ...I think I paid right at $350 for a used set of whatever spec preceded these. Guy used em for like 3 rides and I got them with tires and the xd driver. Can't remember if he gave me rotors too. I want to say yes.
  • 1 1
 I wonder if they're making these rims out of the same kind of cheese that their other rims are made of. It think about half the Bontrager hubs in my hometown are rocking Spank rims by now. The other half are at the dump with the rest of the wheel they were built into.
  • 1 1
 These came stock on my bike, rims are butter and poor to average alloy quality
The hubs on another note come with 54 tooth of engagement but for 20$ you can double it adding 3 paws and spring making it 108 which is how these come stock. At 108 these feel and have better engagement than 90% of the market very expensive hubs. (pretty much anything but I9 and Onyx) The bearings are also great and have been rolling for years of almost daily rides. Those are also easily replaceable.
Get the hubs not the rims!
  • 2 1
 Looks like a great option for some more budget wheels! I don't know about it only coming in a XD Freehub and you having to get a HG or microspine freehub separately though.
  • 1 0
 Thank you. You're just reinforcing why I put cushcore in those wheels. I was thinking about taking them out and now I guess I realize I've been lucky.
  • 43 44
 These are junk. I've submitted probably 10-12 warranty claims for customers, all of them had the ratchet ring debond from the hub body and start spinning. I doubt they fixed it with this gen.
  • 3 0
 It's glued in?
  • 20 18
 @JohanG: Pressed and glued. Not sure why I'm getting downvotes for warning people of a real issue. Sounds about right, like when a customer comes into my store and gets angry when I tell them what's wrong. f*ckin PBers
  • 69 11
 @deonvg, the downvotes are likely because of your aggressive attitude, and the fact that you're talking about the previous generation wheels. It's good to mention prior issues, but saying that a part is junk before trying it or knowing if there have been changes isn't very helpful.
  • 22 54
flag deonvg (Apr 16, 2021 at 10:36) (Below Threshold)
 @mikekazimer: I don't think I was too aggressive. Just standard shop talk. I am speaking of the previous gen of wheels, but they haven't changed the hub or hub design. So, I see it happening again. I do understand that Trek probably paid you to post this, so I understand you feeling the need to defend them.
  • 10 4
 Sorry but, you say "these" and then you say "this gen" that, I assume, you are also making assumptions on? I think you mean, "last gen versions had drive internal issues and I hope this new gen offering corrected the problem." Have a nice day, cheers.
  • 12 14
 @deonvg: mods telling you how to comment, welcome to 2021. thanks for the truth on the wheels though.
  • 14 14
 @dorkbike: Semantics. I did some poking around on the dealer site and consulted with other mechanics here following my initial comment. The hub design is the same, so unless they imbued the new gen with some hippie magics, I see my warranty crusade continuing.

  • 7 7
 @deonvg: You'll feel better if you work that stick out of your BH
  • 1 0
 @deonvg: based on your experience, do you have any tips on a better wheelset in the same price range?
  • 6 11
flag dorkbike (Apr 16, 2021 at 11:02) (Below Threshold)
 @deonvg: I bet you're fun at parties.......pre-COVID of course.
  • 7 5
 @mikekazimer: have there been changes? There have been a tone of failures, it’s an obvious issue, it’s not a secret to anyone. Would you or your staff care to comment on if there have been changes? Aren’t you guys the “journalists”?
  • 4 0
 I have a carbon set of Line Pro 30's. The first set had this exact same issue in the first hundred miles. The ring separated and started spinning inside the hub body. Trek warrantied this set and so far the second set has held up great. I have about 3000 miles on the new hub with no issues knock on wood.
  • 4 8
flag justinfoil (Apr 16, 2021 at 11:47) (Below Threshold)
 @mikekazimer: "saying that a part is junk before trying it or knowing if there have been changes isn't very helpful."

Kinda like how you guys automatically shit on idler pulleys just because an older model had a bad idler?
  • 14 6
 @justinfoil, nope, I don't think that's accurate at all. From my recent Kavenz review: "What about the idler pulley wheel? It kept spinning without any hiccups in some seriously muddy conditions, and I can't say that I ever felt like it was hindering my progress. There's no denying that it does add a little extra drag - I'd say it's similar to what you'd experience with a chain guide that has a lower guide wheel – but it never bothered me out on the trail."

That doesn't really seem like shitting on idler pulleys to me. If they have issues we mention them, and if we work well we also mention that.
  • 2 0
 @escay: this. On paper these wheels appeal to me. If there's something better for the money I wanna know.
  • 6 3
 @mikekazimer: what’s the point of the pb comments if not to hear what 23 year old veterans of the industry think?
  • 4 11
flag deonvg (Apr 16, 2021 at 12:38) (Below Threshold)
 @unrooted: Yes, it's absolutely inconceivable that someone who has worked full time in the industry for years could know a thing or two about bikes. You're the old guy that walks into my shop and talks down to me thinking they know more due to my age, but calls the crankset a sprocket and lubes his chain with WD40. *Insert age appropriate emoji*
  • 9 1
 @deonvg: I learned a looooong time ago not to bother with overly confident shop rats who know EVERYTHING about mountain biking. (Obviously you know that WD-40 makes cycling specific lube)
  • 3 0
 I can confirm. Had a Bontrager hub in 2009 that failed, had one in 2019 that failed in this manner. Yeah, they just press them in with some glue and hope for the best. A friend of mine has had this happen twice on his 2019s. I looked at the warranty wheel box and they subcontract the hub manufacturing two companies removed from Bontrager. It's not going to get better folks.
  • 2 6
flag deonvg (Apr 16, 2021 at 14:00) (Below Threshold)
 @unrooted: Yes, they do. But you’re the guy that uses the spray... on his rotors too. If I’m a rat, you’re a Fred. Hope you have a good day!
  • 3 0
 @deonvg: my name is Fred!
  • 3 2
 @mikekazimer: "Con: Idler pulley could be trouble (but wasn't for me)"

(recent actofive review)

Any part "could be trouble". This one hadn't caused problems, so why call it out explicitly in the cons list? Basically same thing the OP got called out for, except they were actually going off a decent amount of experience of a previous model, not anecdotes about a certain design feature.
  • 2 0
 @justinfoil: On an mtb with 40 dials on the shock/fork, 12 million gears, 400 piston brakes and 50 part rear linkage a simple idler on a ball bearing is definitely the first thing to fail Wink /irony off
  • 7 1
 @justinfoil, those are Levy’s words, not mine. And there’s a difference between saying something could cause trouble and saying “these are junk.”
  • 3 5
 @mikekazimer: the "junk" comment is obvious hyperbole. There are entire bike-related podcasts and sites that solely exist to spout hyperbole, about products new and old and even future, with various levels of satire, it's not something new.

Calling out (because that's what putting something in the pros\cons list is, calling it out) something that DID NOT CAUSE ISSUES is literally the thing you're saying you guys don't do. And yes I'm lumping you all together. I know Levy wrote that, but I didn't see you commenting on his article to say to leave out the preemptive judging. And pretty sure you all agreed with him when it come up on the podcast.
  • 10 0
 @justinfoil, this is a silly debate, and not really related to my original comment here. I'm going to go for a ride now, and I highly suggest you do the same. Bye.
  • 1 0
 @justinfoil: where's @just6979? He couldn't gang up on Mikes K & L all by himself?

New hub iteration looks quality on the hit it with a rock and show us its guts
  • 1 0
 Seems like a pretty good deal for bike park/enduro wheels you don't mind smashing up a bit.
  • 2 1
 Bontrager has got their hubs figured out, but their rims are absolutely shit and wayyyyyy to soft.
  • 1 0
 I have a roscoe 8 and it has line 40's i really like them they feel great with my beefy 2.8 tires
  • 1 2
 Why would I want these if I can have a set of proven reliable DTSwiss M1900's for 80$ less... Trek/Bontrager have a pretty bad track record by now regarding the reliability of their wheels and hubs.
  • 5 4
 Nice, cheap, light, i assume strong
  • 5 3
 IDK. In the BMX world I've heard it said, "Cheap, light, or only get two".
  • 9 0
 @bdub5696: As I recall, that was literally a Keith Bontrager-ism. It was on a top cap some 20 years ago. But no doubt it applies to BMX too.
  • 1 0
 Saw comp thought they were carbon...‍♂️
  • 4 3
 Are wide rims no longer a thing?
  • 4 0
 It’s like everything else mountain bike, they went too far and are now correcting back to something more reasonable. 25-30 is fine for anything from xc to dh when using 2.2-2.5ish tires.
  • 1 4
 30-35mm seems to be the sweet spot. Plus was, is, and always will be awful. Fat bikes are rad for sand or snow.
  • 1 0
 I tried 35mm w/ 2.35 tires and really didn't notice much difference from 27-30mm. Some riders might. I noticed more traction increase with 29er wheels from 27.5.
  • 2 2
 Specialized/Roval needs to step up their game.
  • 1 0
 If they brought what they learned from the Control SL rim profile shaping to the Traverse models and lower price points, that would be hot. I wonder if it's patented... Newmen uses a similar shape. Tairin too.
  • 1 1
 Line comp wheels that came on my 20 remedy were soft as butter.
  • 1 0
 Who makes the hubs?

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