Bikeguide.org - Bike maintenance for BMX'ers
The Street => The Bike Shop => Topic started by: medusa.cascade on October 13, 2014, 05:17:35 PM
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And they seem like bullshit.
http://themerged.com/spotted-primo-2pc-powerbite-crank/
I would really like alloy cranks without pinch bolts or splines. Not both.
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http://www.youtube.com/watch?v=y9bgKm9RTq4&safe=active (http://www.youtube.com/watch?v=y9bgKm9RTq4&safe=active)
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at least with splines they won't creak like the old ones.
and splines and pinch bolts is a fine design imo. my preferred style of crank.
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Same shit pedal insert
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Primo is really good at making shit new versions of things. These and the mix v2. Totally missed the boat.
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I think this design beats the older design.
Square axle was prone to (yes, i've seen it happen) rounding off and allowing for play.
Axle bolts got stuck in crankarm when tightening our crankarm.
Therefore cranks would be prone to wobble if not mounted correctly.
Circular axle with crude splines will likely perform better than square and allows for hollow 22/24/25mm axle. Yayy
Moreover, i can't get used to my swaying tubular cranks after having ridden my first 2nd hand powerbite set for 8 years.
Feels like i'm fuckfooted now.
I saw the new Eclat alloy cranks and just hated the fact that they have a offset/sway just like tubular.
Loved my powerbites man.
The insert design is another issue. I don't know how much companies it takes to get a decent alloy crank design out there but it seems like since the first 'inserted' powerbites, things only went downhill with user experiences.
Really hoping this will not be another year of ignored design flaws for Primo.
Good company imho but if you ignore problems for that long.. that's just dumb.
EDIT: Does anybody know how the other brands (Shadow, any more?) did with their insert designs the last couple years? From what i've heard...
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I don't think anyone bought them to tell you how it went. Ask seth kimbrough
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the shadow cranks should have been named horrid cranks.
i just slapped some powerbites on my bike and jumped high as fuck on some dirt jumps. thank god for not having to worry about faulty chromo cranks.
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I've got a pair of those shadow cranks. They're good.
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Once the insert comes out if the shadow cranks you cant fix them like you can with primos. You also cant get another replacement arm. So you break you have to get new cranks.
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Shadow is fucking superb with their warranty. I had mine come loose and sent the cranks back, they sent me another pair. I've had them since they came out.
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i nearly threw up when i saw these. 2 piece powerbites? arreeeeeuuuurrrrrghhhhhhhh fuck you primo
Powerbite maintenance rules
1. grease the square ends of spindle = no creak (if you ride in the rain they will start creaking again)
2. tighten pinch bolts properly and evenly = no rounding out
3. grease pedal threads when installing = no insert coming out (ok maybe not totally true, but i find the inserts unthread a little way then stop. once you screw the new pedal back in the insert can also be screwed back in)
these new ones are disgusting though, another colossal primo fail
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I don't think anyone bought them to tell you how it went. Ask seth kimbrough
Lol hahah. He's still our reli-rock hero though!
i nearly threw up when i saw these. 2 piece powerbites? arreeeeeuuuurrrrrghhhhhhhh fuck you primo
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these new ones are disgusting though, another colossal primo fail
I don't really see where you're coming from. But i respect your point of view nonetheless.
It's just, they look 99,9% like the old powerbites, which imho weren't badly designed or shaped. You just need to like alloy cranks.
So to me, saying those look disgusting is saying any power/hollowbite looks disgusting.
That's opinion. But what is so fail about it?
I don't see how there's anything wrong with 2-piece since everybody and their dog are producing 2 piece cranks.
The 2 piece design allows for these nice big hollow axles, and without these axles your cranks are nót going to sell these days.
Basically it's reduced in weight, while maintaining strength, plus they've updated the crankarm connecting interface to something that is going to outperform the previous design.
Doesn't sound bad to me.
Your maintenance rules are right on, if you have 'old school' power/hollowbites; not a bad thing to say about it.
But the industry moved on to bigger and better things, Primo adjusted their design to the specs of todays consumers, and kept it looking like the same stuff.
If you ask me, apart from knowing how the inserts perfom, i'd say Primo did a good job on 'keeping up' 3 years late.
JUST like with their first female cassette.
That's a whole other story though, not smart but regardless, i still like to think Primo is a good company heh heh.
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i nearly threw up when i saw these. 2 piece powerbites? arreeeeeuuuurrrrrghhhhhhhh fuck you primo
Powerbite maintenance rules
1. grease the square ends of spindle = no creak (if you ride in the rain they will start creaking again)
2. tighten pinch bolts properly and evenly = no rounding out
3. grease pedal threads when installing = no insert coming out (ok maybe not totally true, but i find the inserts unthread a little way then stop. once you screw the new pedal back in the insert can also be screwed back in)
these new ones are disgusting though, another colossal primo fail
These 3 simple maintenace rules are very simple to follow,if you find them difficult to upkeep,you might want to consider wearing a helmet even when not riding your bike.
The easiest way to prevent the pedal inserts from coming out is this magical stuff called threadlocker,I've used it many times on many things and it really does work as advertised.
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Seriously. Once the pedal insert gets sorted out with some loctite Powerbites are pretty much fool proof.
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The inserts look different my guess is theyre riveted in?
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Seriously. Once the pedal insert gets sorted out with some loctite Powerbites are pretty much fool proof.
You know this and so do I,also many others do as well,yet there are a few that find it so damn difficult to do this very simple step in making something alot better....it's just easier for them to wine and cry I guess.
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I had powerbites for a couple of years and had the insert come out once. Like mentioned, put some threadlock on it, grease the pedal spindles and its good to go. Would most certainly look at getting these if I still had a bike.
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The inserts look different my guess is theyre riveted in?
Looks like it. Also looks like it's slightly beefier.
Actually feeling quite good about these, can't wait to see them IRL.
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If any other newer style crank needed locktite to work properly, you guys would shit all over them
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F#ck you Primo!
Why?
Because Brian Foster, that's why.
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I don't think anyone bought them to tell you how it went. Ask seth kimbrough
Lol hahah. He's still our reli-rock hero though!
i nearly threw up when i saw these. 2 piece powerbites? arreeeeeuuuurrrrrghhhhhhhh fuck you primo
......
these new ones are disgusting though, another colossal primo fail
I don't really see where you're coming from. But i respect your point of view nonetheless.
It's just, they look 99,9% like the old powerbites, which imho weren't badly designed or shaped. You just need to like alloy cranks.
So to me, saying those look disgusting is saying any power/hollowbite looks disgusting.
That's opinion. But what is so fail about it?
I don't see how there's anything wrong with 2-piece since everybody and their dog are producing 2 piece cranks.
The 2 piece design allows for these nice big hollow axles, and without these axles your cranks are nót going to sell these days.
Basically it's reduced in weight, while maintaining strength, plus they've updated the crankarm connecting interface to something that is going to outperform the previous design.
Doesn't sound bad to me.
Your maintenance rules are right on, if you have 'old school' power/hollowbites; not a bad thing to say about it.
But the industry moved on to bigger and better things, Primo adjusted their design to the specs of todays consumers, and kept it looking like the same stuff.
If you ask me, apart from knowing how the inserts perfom, i'd say Primo did a good job on 'keeping up' 3 years late.
JUST like with their first female cassette.
That's a whole other story though, not smart but regardless, i still like to think Primo is a good company heh heh.
its pretty pointless making a crankset that was designed as a 3pc into a 2pc. for years after i started the only 2pc crank out was some dodgy sounding khe one, they were a joke. its only cos of wombolts (which were designed to be 2pc from the start) that they became viable again.
the main downside is for sprocket removal/replacement, if you run your sprocket on the side of the cranks with the fixed arm, you have to take the whole thing out to replace it.
this also goes for adjusting crankarm/bb spacing etc. might not be an issue for many people but its a definite inferiority of 2pc cranks compared to 3pc.
theres also the point that if you have an issue with a 3pc crank arm, its possible to fit a replacement easily. if you stuff up the fixed arm on a 2pc you pretty much might as well buy a whole new set of cranks
plus now it seems like the majority of companys are moving to splined sprockets in a 22mm or 24mm interface, so in fact primo are not really tailoring their range to what the consumers want.
what i hate most is the aesthetics. over the last few years primo has taken some of its most trusted and revered classic parts and redesigned them making a mockery of them.
the remix with the piddley piss weak bearings in it, and now this. Primo were THE shit back 10-15 years back (before odyssey really stepped up their game), and now they come out with a load of nasty looking inferior remakes of their old parts, and rasta complete wheels. apparently the new V monster is decent, though it might as well not be a vmonster as they ditched the classic tread design
i wonder how long primo will last, seems like tips plus is gonna make way more money off stranger and cult because those are the sort of brands kids want to buy, irrespective of how good their products actually are. engineering stands for nothing in bmx because of the adolescent consumerbase who wants stuff with weed references and half assed illuminate imagery
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It looks like the only thing is shares with any previous primo cranks is the basic arm profile, id say they were designed to be 2pc...?
Possibly resolved the pedal inserts.
Splined axle, so that should reduce the creaking.
The clamp area on the arm is now a more regular thickness, ie no axle corners on the top/bottom - http://www.albes.com/ProductImages/crankphotos/primopowbite.jpg so that should stop the breakages that occurred there across there.
Half as many interfaces to worry about.
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Seriously. Once the pedal insert gets sorted out with some loctite Powerbites are pretty much fool proof.
You are seriously underestimating the level of fool that is out there.
My Powerbites were good for a long time, sure the pedal insert unscrewed everytime you removed a pedal, but it stopped after a while (never came all the way out) and then the pedal came free and then you could put a new one in (but then I always coppaslipped my pedal threads), they were sometimes a bit tight to remove (slight pinching) but I never snapped off the pinch bolt lugs like some people. Really the only issues (for me) were the weight and ankle bite.
:)
G.
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It looks like the only thing is shares with any previous primo cranks is the basic arm profile, id say they were designed to be 2pc...?
Possibly resolved the pedal inserts.
Splined axle, so that should reduce the creaking.
The clamp area on the arm is now a more regular thickness, ie no axle corners on the top/bottom - http://www.albes.com/ProductImages/crankphotos/primopowbite.jpg so that should stop the breakages that occurred there across there.
Half as many interfaces to worry about.
so stupid when they designed the hollowbites with angular edges. one of the main things people disliked about powerbites was hitting their ankles on them, so hey lets make them sharper and more pointy.
primo dropped the ball years ago now i think about it, i heard the n4fl or whatever the flangeless hub was called wobbles more than a profile, and then someone died when his primo bars snapped on a landing while riding dirt-he had a helmet on too
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its pretty pointless making a crankset that was designed as a 3pc into a 2pc. for years after i started the only 2pc crank out was some dodgy sounding khe one, they were a joke. its only cos of wombolts (which were designed to be 2pc from the start) that they became viable again.
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Wasn't it fly who came out with that came out with the modern 2 piece design?
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its pretty pointless making a crankset that was designed as a 3pc into a 2pc. for years after i started the only 2pc crank out was some dodgy sounding khe one, they were a joke. its only cos of wombolts (which were designed to be 2pc from the start) that they became viable again.
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Wasn't it fly who came out with that came out with the modern 2 piece design?
I think so...they called it 2.5 pc because you still had to knock one arm onto splines. it just didn't have a bolt holding that side on
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its pretty pointless making a crankset that was designed as a 3pc into a 2pc. for years after i started the only 2pc crank out was some dodgy sounding khe one, they were a joke. its only cos of wombolts (which were designed to be 2pc from the start) that they became viable again.
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Wasn't it fly who came out with that came out with the modern 2 piece design?
I think so...they called it 2.5 pc because you still had to knock one arm onto splines. it just didn't have a bolt holding that side on
Shouldn't they all be called 2.5? Reason being, aren't all the "2pc" cranks still have the spindle made separately? Just because a company fixes 1 side of the crank to the spindle instead of the consumer, doesn't warrant a change in name. Plus 2pc cranks are a lot more like 3pc rather than 1pc, and the name makes it sound like they are equidistance. It's not even a big deal, and lame to even argue but I just feel like companies are trying to make something sound like an original idea by changing the name(i.e. KHE or who ever first uses that 2pc name).
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That would make the old powerbites 12 piece cranks.
4x pinch bolts
2x spindle bolts
2x arm
2x pedal boss
1x spindle
1xsprocket bolt.
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F#ck you Primo!
Why?
Because Brian Foster, that's why.
Yep and good old Stricker. Once both of them got kicked it was fuck you primo
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2.5pc cranks were the ones where the crankarms were not fixed onto the spindle. They made a permanent stop on one side of the spindle and the splines were bigger on one side so that the crankarm could slide over the other side.
(http://redlinebicycles.com/wp-content/uploads/2013/11/Cranks_Device-cross-thumb_800.jpg)
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F#ck you Primo!
Why?
Because Brian Foster, that's why.
Yep and good old Stricker. Once both of them got kicked it was fuck you primo
I don't know about you and others but,I don't buy parts based on who rides for what company,I buy parts based on how they are made and the quality of them.At the end of the day,Primo is still making some of the same parts and designing new ones even though those two are not on the team anymore.
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2.5pc are really just 3pc with one of the end bolts built into the spindle
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Wombolt style cranks are a godsend, I don't know how you goofy bastards run those ankle killer Primo style cranks. Actually, mostly any other crank other than Twunderbolts hate my ankles so thank you, G.
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That would make the old powerbites 12 piece cranks.
4x pinch bolts
2x spindle bolts
2x arm
2x pedal boss
1x spindle
1xsprocket bolt.
This is stupid. A generic 3pc 48 spline crank would then be a 5pc crank.
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6, you forgot the sprocket bolt.
This whole thread is full of stupid.
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That would make the old powerbites 12 piece cranks.
4x pinch bolts
2x spindle bolts
2x arm
2x pedal boss
1x spindle
1xsprocket bolt.
This is stupid. A generic 3pc 48 spline crank would then be a 5pc crank.
And it's stupid for people to care about 2.5 peice cranks being really 3 peice cranks. It was an attempt at humor.
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6, you forgot the sprocket bolt.
This whole thread is full of stupid.
what about the washers?
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Profiles come with a sticker too?
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Profiles come with a sticker too?
count it
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I had a friend who got the powerbite without inserts when they came like that. Paid the equivalent to $350 for them (american parts were super expensive in Sweden back in the day). Then ran them reverse as he also had bought a LSD hub. They stripped after 20 min. Never facepalmed so hard...
he drilled a bigger bore through the arms and bolted on two big bolts with threads and ran them for 2 more years.
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I used to have the old powerbites without an insert, just straight aluminum. Never had a problem with those.
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I had a set of those I bought off my friend. Way sick.
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eh, not into these. i'll stick to my fly/suelo cranks
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This is funny because...
its pretty pointless making a crankset that was designed as a 3pc into a 2pc. for years after i started the only 2pc crank out was some dodgy sounding khe one, they were a joke. its only cos of wombolts (which were designed to be 2pc from the start) that they became viable again.
I have to agree.[/b][/color]
the main downside is for sprocket removal/replacement, if you run your sprocket on the side of the cranks with the fixed arm, you have to take the whole thing out to replace it.
this also goes for adjusting crankarm/bb spacing etc. might not be an issue for many people but its a definite inferiority of 2pc cranks compared to 3pc.
I have to agree.
theres also the point that if you have an issue with a 3pc crank arm, its possible to fit a replacement easily. if you stuff up the fixed arm on a 2pc you pretty much might as well buy a whole new set of cranks
plus now it seems like the majority of companys are moving to splined sprockets in a 22mm or 24mm interface, so in fact primo are not really tailoring their range to what the consumers want.
True.
what i hate most is the aesthetics. over the last few years primo has taken some of its most trusted and revered classic parts and redesigned them making a mockery of them.
the remix with the piddley piss weak bearings in it, and now this. Primo were THE shit back 10-15 years back (before odyssey really stepped up their game), and now they come out with a load of nasty looking inferior remakes of their old parts, and rasta complete wheels. apparently the new V monster is decent, though it might as well not be a vmonster as they ditched the classic tread design
i wonder how long primo will last, seems like tips plus is gonna make way more money off stranger and cult because those are the sort of brands kids want to buy, irrespective of how good their products actually are. engineering stands for nothing in bmx because of the adolescent consumerbase who wants stuff with weed references and half assed illuminate imagery
I have to agree. BUT it's not just because of Cult Stranger or other brands. Innovating would have been the way to go and indeed, they didn't.
Also i would like to add that i thought Primo is pretty big.
I THINK have seen belts for idk what kind of motors, with the Pr1mo logo, super thin 20" racing comets and other racing tires... Seems like they are in a lot more than 'Just' bmx.
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I think everyone is forgetting when Primo dropped John Povah and the entire team left.. Or the time they dropped Corey Martinez and more riders left.. Primo drops more riders than Rosanne Barr drops shits.
I quit buying Primo stuff 2 or so years ago when I couldn't get ahold of anybody who knew shit for customer service.. I've tried again recently but still nothing.. I ended up getting some help with a Primo Remix and while it's worked fine so far the bearings are so tiny I'm sure they won't hold up so I will probably part with that soon..
Unless they fixed the pedal boss on these I have no interest in them and if they did it will still likely be the last thing I buy from them..
Really wish other companies would put some solid R&D into aluminum crank arms.
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https://web.archive.org/web/20010331112243/http://primo-usa.com/
Never forget, never buy.
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Also i would like to add that i thought Primo is pretty big.
I THINK have seen belts for idk what kind of motors, with the Pr1mo logo, super thin 20" racing comets and other racing tires... Seems like they are in a lot more than 'Just' bmx.
yeah primo make wheelchair tyres as well
http://www.amazon.com/s/ref=bl_sr_sporting-goods?ie=UTF8&field-brandtextbin=Primo&node=3375251 (http://www.amazon.com/s/ref=bl_sr_sporting-goods?ie=UTF8&field-brandtextbin=Primo&node=3375251)
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Just trying to stay relevant, but I guess it's not really helping.
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Also i would like to add that i thought Primo is pretty big.
I THINK have seen belts for idk what kind of motors, with the Pr1mo logo, super thin 20" racing comets and other racing tires... Seems like they are in a lot more than 'Just' bmx.
yeah primo make wheelchair tyres as well
http://www.amazon.com/s/ref=bl_sr_sporting-goods?ie=UTF8&field-brandtextbin=Primo&node=3375251 (http://www.amazon.com/s/ref=bl_sr_sporting-goods?ie=UTF8&field-brandtextbin=Primo&node=3375251)
Just bought some Comets for my bmx since they come in a Kevlar folding version
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Also i would like to add that i thought Primo is pretty big.
I THINK have seen belts for idk what kind of motors, with the Pr1mo logo, super thin 20" racing comets and other racing tires... Seems like they are in a lot more than 'Just' bmx.
yeah primo make wheelchair tyres as well
http://www.amazon.com/s/ref=bl_sr_sporting-goods?ie=UTF8&field-brandtextbin=Primo&node=3375251 (http://www.amazon.com/s/ref=bl_sr_sporting-goods?ie=UTF8&field-brandtextbin=Primo&node=3375251)
Just bought some Comets for my bmx since they come in a Kevlar folding version
When did they start doing kevlar versions ? Shit out of the loop on this one..
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like, ages ago duuude.
ran one and retired it after a good year of use!
6, you forgot the sprocket bolt.
This whole thread is full of stupid.
this still makes me chuckle.
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like, ages ago duuude.
ran one and retired it after a good year of use!
6, you forgot the sprocket bolt.
This whole thread is full of stupid.
this still makes me chuckle.
Haha damn, like I said left out of the loop, I am going to google that shit, keen.
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Yeah i could send you a mailorder link but i don't think you're down with eu shops.
Good tire though, treated me well :)
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Yeah i could send you a mailorder link but i don't think you're down with eu shops.
Good tire though, treated me well :)
Shit late reply, I never get notifications on anything in here, appreciate the help, thanks any way, yeah EU is pretty expensive for us at the moment.
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not crazy about the assymetrical look.