Buying a new caliper or fix it ?

[EXC-Rider]

my front break caliper on my CRF450 is im guessing the pistons seized and i and still push the bike forward with the break fully applied, i know its not the pads as they are almost new.

if i was to fix it i have no idea what i would be doing so would be shooting in the dark when i take it apart and that breaks are quite important

also it leaks oil a slight bit so there prob need some work to it i guess.
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owned bikes: DR50, Thumpsta 110 , Honda CR85, Speedfight 100, Yamaha XT125X, Honda CRF450, Honda Hornet '07
current bikes: KTM EXC525 AKA the wheelie machine
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[chris-red]

Buying a new one won't help. The 'oil' it is leaking is brake fluid, it needs pressure for the calliper to work. It needs a rebuild an re-bleeding.

You sound completely mechanically inept, so take it to a garage. It shouldn't cost more than £20 for the seals £5 for the fluid and an hours labour £60? from a dealer. If you take it to a private local garage it probably will set you back £50-60 total.
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[EXC-Rider]

I would take it to a garage but i kinda wanna learn how to fix it my self for the future. And i know it was break fluid leaking and last time i bled them it work fine just happened after it sat in the shed for the winter.

and im only young so still learning how to repair most stuff.
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owned bikes: DR50, Thumpsta 110 , Honda CR85, Speedfight 100, Yamaha XT125X, Honda CRF450, Honda Hornet '07
current bikes: KTM EXC525 AKA the wheelie machine
A friend in need is a friend indeed but a friend with weed is better!

[Apexes]

Calipers are fairly simple, have a browse on youtube for video's - that's how i've learnt most of my maintenance
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Current Ride: 2011 Kawasaki Z750

[Kickstart]

Hi

If you can pull the brake lever hard, feel pressure in the system and still move the bike the caliper is either VERY seized (in which case it would have pretty much no effect), or more likely it has seized badly on the pins it slides on (suspect it is a twin piston sliding caliper). If so getting it to slide on those pins again will be the difficult bit.

All the best

Keith
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https://www.bikechatforums.com/viewtopic.php?t=33116

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[EXC-Rider]

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owned bikes: DR50, Thumpsta 110 , Honda CR85, Speedfight 100, Yamaha XT125X, Honda CRF450, Honda Hornet '07
current bikes: KTM EXC525 AKA the wheelie machine
A friend in need is a friend indeed but a friend with weed is better!