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Best Way To Lighten Bike?


Vee

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basically my bike has always been real heavy and im not sure why, i dont use heavy parts but it always weighs a ton compared to my mates

basically heres a spec

front- hope mono on mavic ex721

fatty r forks

viz max bars

yeti lockon grips

maggies with czar levers and splitter on rear

planet x stem

pig dh pro 2 headset

adamant a2 frame

some shimano un52 bb

heatsink cloud9 middleburns

welgo pedals

24-7 rear rim

hope pro 2 trials hub

maxxis minion dual tyre on rear an cheap ass tyre on the front

3" downhill tube rear

and cheap tube on front

what would eb the easiest way to make it lighter

but the easiest way and cheapest, like on a car the more horsepower for pound sort of thing

thanks for any help

Vee

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rear tube I had a 4 inch one took it off and put a standard in been fine

this is what i was thinking, but if i take the wheels off it still seems hefty compared to my mates, and he got his fram eoff me and it was hevay when i had it and real light now he has, he has the same forks and middleburns so im not sure

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Obviously this is just off top of my head so i may get something wrong,

lighter rear tube

light front tyre

tryall rear rim

viz fork as im should think fatties arent the lightest?

new stem

king or tensile headset

alu and ti bolts

strip frame paint

drill parts

frame mods

grips, monty foam ones if you want to go even lighter

little things can make a big difference when theyre added up, also a2 frames wernt light where they either they where like average if im not mistaken? the key to a light bike is a light frame and light wheels

if you arnt bothered about money then, tryall cranks and moded tensile bashring, light rear fixed hub and freewheel if you wanted to go lighter. Also light magnesium pedals

Edited by basher
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lighter rear tube

light front tyre

tryall rear rim Dob rear rim

viz fork as im should think fatties arent the lightest?

new stem

king or tensile headset

alu and ti bolts

strip frame paint

drill parts

frame mods

grips, monty foam ones if you want to go even lighter

:P Get a schwalbe bit betty tire if you can as well.

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haha, nah has no felt the weight of fattys?? theyre light as! made by canondale niked by ashton and coped by orange i think now

im not drilling at all! lol id drill the wrong bit for sure and itll just snap! rim is fairly light compared to most on tartys

i could stick with this build and then on the next ill build super lightweight and id be able to jump millions of feet!

hahaha

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front- hope mono on mavic ex721 - Drill the front rim, build it radial pattern with alloy nipples for a few more grams?

fatty r forks - pretty sure there's a fair few forks out lighter than this now?

viz max bars - so good!

yeti lockon grips - standard grips, few grams to be had there

maggies with czar levers and splitter on rear - fine

planet x stem - could have a look to see if there are lighter stems about? an opportunity to try out new geo too

pig dh pro 2 headset - heavy b*****d! get rid of this for something with sealed bearings - Tensile if you can afford it

adamant a2 frame - aren't these about 2.2kg? I might be completely wrong, but they're not U6 are they.

some shimano un52 bb - square taper? ew :P

heatsink cloud9 middleburns - I'm sure with a drill you can have a load of weight off of the cloud 9 bash, it's thick as hell!

welgo pedals - I assume these aren't MG1s? If they're not get some off a Hong Kong seller on eBay, takes a week or so but they're the best pedals ever! Just careful with knocking out the pins

24-7 rear rim - Basically a TryAll isn't it? Could go for a DOB?

hope pro 2 trials hub - fine

maxxis minion dual tyre on rear an cheap ass tyre on the front - could go for a UST Maxxis Minion rear tyre but they're expensive, and get a decent light front tyre on the go (Y)

3" downhill tube rear - no no no! I rode with a DH tube when I was more of a beginner and looking back it was horrible! The Halfords 2.1-2.5 tubes are about right

and cheap tube on front - fine

Obviously you can also go with all these ally and Ti bolts but that's getting into REAL silly money!

Edited by Shaun H
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Obviously you can also go with all these ally and Ti bolts but that's getting into REAL silly money!

what do you mean a radial pattern?

the pig dh pro 2 is sealed??

and theres no way im drilling the bash! looks to sexy

but you know your stuff, i really want to drill the front rim that should shave a few and wont cost

im fairly sure there are alot lighter stems about as i bought this because it was insanely reduced in price and i had nt alot of cash

thanks alot mate ill look into some of this!

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I don't get why people do this...

Why must you have a light bike? what will it achieve? Why is an average weight bike not good enough?

if you want a light bike its already proven, buy some silly comp frame and put everything carbon on it, but if you want your face, don't!

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I don't get why people do this...

Why must you have a light bike? what will it achieve? Why is an average weight bike not good enough?

if you want a light bike its already proven, buy some silly comp frame and put everything carbon on it, but if you want your face, don't!

mine aint average weight, its got a fair bit of heft to it so think ill just drill the front rim n new innertube at the back maybe new rim and spoke at the back to

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what do you mean a radial pattern?

the pig dh pro 2 is sealed??

and theres no way im drilling the bash! looks to sexy

but you know your stuff, i really want to drill the front rim that should shave a few and wont cost

im fairly sure there are alot lighter stems about as i bought this because it was insanely reduced in price and i had nt alot of cash

thanks alot mate ill look into some of this!

Oh right, I thought all the FSA Pig series had caged bearings. Either way, Pigs are still heavy duty aren't they. If you don't fany drilling your bash but still want to make it thinner you could ask Edd Potts if he can machine it down on a proper lathe.

Drilling the front rim is definitely a good idea weight wise. (Y)

I don't get why people do this...

Why must you have a light bike? what will it achieve? Why is an average weight bike not good enough?

if you want a light bike its already proven, buy some silly comp frame and put everything carbon on it, but if you want your face, don't!

A lighter bike will ride better end of. Of course towards the higher end you'll be paying silly money for stuff (or cheap + light stuff at the delight of your dentist) but there's usually a few things that can be changed easily and cheaply without any loss of strength in critical areas.

Oh and by the way carbon isn't neccesarily going to cost anyone their face, if manufactured correctly it can be a far superior material at a much lower weight.

Don't radial lace, it saves about 7-8 grams and will might snap the flanges off your hub, hence why hope don't warranty their hubs if they have been radial laced.

I'm sure it must be more weight than that, and yes you're right it can snap flanges but with hub and spoke quality as high as they are nowadays it's not as likely as it used to be. To be fair it is one of the very last things I'd do to save weight, but if I was running a rim brake I would be tempted...

mine aint average weight, its got a fair bit of heft to it so think ill just drill the front rim n new innertube at the back maybe new rim and spoke at the back to

If the rim IS a TryAll copy I wouldn't replace it until it needs it, no point wasting money.

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Don't radial lace, it saves about 7-8 grams and will snap the flanges off your hub, hence why hope don't warranty their hubs if they have been radial laced.

Even more important if you're running a disk brake you will tear the hub to pieces with radial lacing as radial spokes can't support a lot of torque between the hub and the rim (This eliminates it from consideration at the back wheel too). As for weight saving - 32 Spokes at (2mm)^2 x pi/4 area x about 20mm length saving (From spocalc for a D521 with an XT hub, it's within a few mm of this regardless of what you use) x (1e-9m^3/mm^3) Conversion factor x 8000 kg/m^3 density for Stainless steel = 15.6g... Definitely not worth it. Tyres and tubes seem to offer a lot of weight saving, though I'm a big fan of DH tubes in the back tyre.

Tubeless doesn't really save any weight (Especially if you run sealant) and particularly when used for trials at low pressure with high side forces you can lift the tyre bead off the rim and make the tyre instantly flat. Incidentally I managed to pinch puncture a UST tyre on my XC bike a few months ago on the edge of a step, so even the idea that UST's can't pinch flat is wrong (You get a hole in the sidewall just above the rim while the tyre tread stays unpunctured). The goo I had in the tyre wouldn't seal it either (And will spray everywhere if you lift the tyre bead off).

If you're buying CF parts make sure they're rated for trials use. Trials handlebars and stems take a lot more abuse than possibly anything other than DH bikes ridden off huge drops all the time, so XC stuff will need replacing very regularly to stop it killing you.

Edited by psycholist
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Tubeless doesn't really save any weight (Especially if you run sealant) and particularly when used for trials at low pressure with high side forces you can lift the tyre bead off the rim and make the tyre instantly flat. Incidentally I managed to pinch puncture a UST tyre on my XC bike a few months ago on the edge of a step, so even the idea that UST's can't pinch flat is wrong (You get a hole in the sidewall just above the rim while the tyre tread stays unpunctured). The goo I had in the tyre wouldn't seal it either (And will spray everywhere if you lift the tyre bead off).

There's a few people using 2.5 Maxxis UST High Rollers but with an inner tube inside. Mike Singleton rates his really well, the Tyre is something like 950g but as it's tubeless the sidewalls are designed to be stiffer thus reducing pinches. But as I said earlier they're a bit more expensive.

Just thought I'd chuck in the old Brontrager quote:

Cheap, strong, light... choose 2.

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