My bike upgrade - (56K no-no)

ferrari_chris

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ferrari_chris
OK, so I decided it was time to upgrade my bike.

The mechanical discs just weren't cutting it any more, and it was time to go for something better. Something hydraulic. Something top end. I decided on the Avid Juicy Seven.

brakesetqr4.jpg


The one problem that was seen early is the fact that at present my brake lever and gear shifter are one unit on the handle bar. I knew this was going to be something of an issue, but wasn't aware how much...

Due to the price of this top of the line item, I decided to go for front only at this stage, then look at doing a similar setup on the rear sometime in the not-too-distant future. I wanted to go for 203mm at the front (upgrading from my 160mm disc at the moment) however my super-special stockist didn't have the 203mm. They will however have them in the future.

So, armed with this information, the decision was made to go 160mm at the front and then get a 203mm rear later on. When the rear comes, I'll put the 203mm rotor on the front, and the current 160mm rotor on the rear.

So now that the gear had arrived safely, it was time to get into it. The sales pitch said the gear comes pre-bled out of the box and is ready to bolt on - that made things a bit easier. Accompanying the hardware was a handy installation manual - but who needs that?...

The gear:

newkitbeforebu3.jpg


My bike before, in a dirty (well loved) state:

bikebeforepp3.jpg


Trainspotters will notice the non-standard seat. I had to buy a new one after I bent the original. Huge jump at the local BMX track :rolleyes:. My pride wasn't the only thing that got crushed... :crazy:

The current lever:

leverbeforeti5.jpg


Those grazes and the cut grip (the other side it cut too!) come from going over the back at about 30kph trying to pull a wheelie down hill... Not a fun time. :indiff:

The current rotor calliper setup:

rotorcalliperbeforefy8.jpg


First thing was off with the front wheel and off with the front rotor.

Old rotor:

rotorbeforeci8.jpg


Removing the rotor required the use of this special tool, lent to me by my friend. :D

Tool:

toolug9.jpg


After removing the rotor - which was a fairly simple process of undoing the screws - the new rotor was screwed on using the screws provided. There was nothing wrong with the screws I took off, but I thought a new rotor deserved new screws.

The new rotor:

rotorafterer7.jpg


After installing the rotor, it was time for the calliper... First I diconnected the cable from the lever, then it was as simple as undoing the bolts holding the calliper to the adapter and the adapter to the fork. With that out of the way, it was time to bolt up the new one... The adapter was bolted back to the fork (there was no need to take it off in the first place :rolleyes:) and the calliper bolted on. Bolts left snug (but not tight) at this stage to allow for adjustment later.

The wheel was put back in place, and it spins freely with no rotor scrap. Yay! :)

Flip the bike back over, and time to mount the lever. My original intention was to cut the old lever off, but I've decided to keep it there for now as it's out of the way. Shift the old lever assembly along the bar a little, run the cable up and attach the new lever. There was a little bit of fiddling with the position of the shifter and the new lever to ensure both worked OK together. This is where the latest problem became apparant... - but more on that later.

A little adjusting of the calliper, and then the bolts were tightened up.

All done in a little over an hour. Excellent!

My bike, all done:

bikeafterwy9.jpg


So after a quick test ride how does it go? Crap! But that's just because they need to be bedded in - after a week or so and a bit of riding they should be right on the money...

Now, back to this extra brake lever/single shifter-lever problem. To get both the new lever and the original shifter mounted on the bar so both could function, neither are ergonomic to use. The lever sits too high for my liking, and rather than the old finger movement to change gears I now have to move my whole hand around the front of the bar. Hopefully this will only be short lived, as I'm looking into the next puchase/upgrade right away...

The new abortion of a lever/shifter assembly:

leveraftergd6.jpg


The new rotor/calliper combination:

rotorcalliperafterkh9.jpg


So where to from here? Well, as I mentioned earlier the plan was to get the matching rear kit and install that. However, with the apparent crapness of the shifter/lever and the way they work together, next on the list is a SRAM shifter (probably X9) with a matching derailluer.

I'll post up the install of that when it's bought, here, and installed.

All things considered though, not a bad hour's work. I can't wait to give it a good blast though, even in this less than user-friendly state.
 
Very nice!
But what was wrong with the normal disk brake, wasnt it strong enough? And how hard was it to take the disk off? I took mine off once and the screws were super tight, they each made a loud crack when I loosened then I thought i sheared the bolt:scared:

You mind sending me your old disk?:D Mines not in the best shape.
 
Very nice!
But what was wrong with the normal disk brake, wasnt it strong enough? And how hard was it to take the disk off? I took mine off once and the screws were super tight, they each made a loud crack when I loosened then I thought i sheared the bolt:scared:

You mind sending me your old disk?:D Mines not in the best shape.
Nah, it certainly wasn't strong enough. It was nowhere near as strong as my new one is - even now after 1 ride...

With the mechanical ones, they slowly fade and the lever pull gets longer and longer as the cable moves and stretches after each hard pull. You don't get that with hydraulic. One thing to favour mechanical over hydraulic is the modulation it gives - there's a lot of different pressure you can apply with mechanical, easing the pressure up as required whereas the hydraulic ones bite hard and fast. It takes a bit of getting used to being able to apply slight braking with them.

Getting the rotor off was not a problem. The bolts were a little tight but the seal wasn't hard to break. There's a compound that's comes on the thread of the bolt that makes them tight and gives that seal. It was on the ones I removed and the new ones I put in. The tool I used (pictured) doesn't work like a screwdriver - it has the handle off to the side thus giving a lot more torque. Maybe that's why?...

As for my rotor, if you were in the States I might be able to work something out with you, as I may need something sent over here but alas... What's wrong with your one?
 
With the mechanical ones, they slowly fade and the lever pull gets longer and longer as the cable moves and stretches after each hard pull. You don't get that with hydraulic. One thing to favour mechanical over hydraulic is the modulation it gives - there's a lot of different pressure you can apply with mechanical, easing the pressure up as required whereas the hydraulic ones bite hard and fast. It takes a bit of getting used to being able to apply slight braking with them.
I was going to mention that to you, my uncle has a hydraulic brake but no the disk, he has the v brake type thing, I went for a ride on his bike, just slightly pressed the leaver and the bike almost stopped immediately. You should be careful with it if you go downhill biking first, last thing you want to do is press the brake too hard and go head first into a tree or something:lol:
I prefer the cable brake though, I like the variable pressure. But no doubt your hydraulic brake will be more reliable and easier to adjust than the cable one.

As for my rotor, if you were in the States I might be able to work something out with you, as I may need something sent over here but alas... What's wrong with your one?

I knocked the bike on a low wall and the disk is slightly buckled...again:ouch:
 
Well, in the next installment...

I was taking my bike out of the car after returning from doing some jumps, and my front wheel was off to fit the bike in the car. I accidentally pulled the brake lever a little bit, with no rotor in the calliper.

When it came time to put the wheel back on, there was hardly enough room between the pads to fit the rotor in! :eek:

So, once the wheel was on, there was a fair amount of drag from the brake. :grumpy: So, wheel off and I jammed a screwdriver in between the pads, and gave it a twist to spread them out. Not much change... So I got the red packer that came with the brake (as seen above) and rammed that in between the pads. After a few squeezes of the lever to reset the fluid/pistons, all is good.

Wheel spins free and brakes work. :)

Crisis averted...
 
Another reason I chucked my hydraulics in favor of Cable. xD

In the future ask your local bike shop if they will give you a brake spreader which is basically a plastic wedge. It will do less damage than a screwdriver.
 
So, time for a bit of an update.

Front brakes work excellently - rear ones will be coming shortly.

A new SRAM X7 rear shifter and derailleur have been ordered, received and fitted. I stuck with the old Shimano 8-speed cassette, so the shifting isn't perfect. But it's good enough.

I'll get some pics up shortly I hope. :)
 
If you ever have any extra parts you don't need i'd be glad to take them off your hands, lol.

but seriously, i've been looking for a longer front suspension then what i have, not that i need it for performance, i just would like a longer front end for my cruise mountain bike. My seat also broke on me, so i haven't gone for a ride for a god amount of time.

I would be glad to pay, but my family doesn't have much money right now, and i don't have a job yet. anywho, if anyone has any extra parts they'd like to sell or give away, id be interested :D
 
... My seat also broke on me, so i haven't gone for a ride for a god amount of time. ...
:lol:

I went out for a ride this morning and my mate broke his seat. He had to ride all the way home standing up.

:lol:

I should have taken photos of the new kit today too... :ouch: :indiff:

I'll let you know about parts and stuff once I get my rear brake installed - a few weeks hopefully. :)
 
Sweet bike mate. I've been for a very brief spin on a trials bike, but I lack skill.

Shred hard, and get some vids up on YouTube. Unlike my mates, I like trials. 👍
 
Why do bike rotors have so many holes in them? Wouldn't a solid disc perform a lot better?
 
Yep, because they get HOTTT!!!! Really fast in a downhill bike...

And thanks Chris, Trials is awesome, By the beginning of next summer, i'll be able to do everything i used to... I'm taking the switch from vintage trials moto, to bicycle... so its kinda weird... Although I can throw my OT bike around like its a hatt...
 
Why do bike rotors have so many holes in them? Wouldn't a solid disc perform a lot better?

Heat dissipation?

Yep, because they get HOTTT!!!! Really fast in a downhill bike ...
And mud and water. After getting mud all over my rotor, I want somewhere for it to go when I squeeze the lever for the next corner. No, a solid disc would not perform better.

...And thanks Chris, Trials is awesome, By the beginning of next summer, i'll be able to do everything i used to... I'm taking the switch from vintage trials moto, to bicycle... so its kinda weird... Although I can throw my OT bike around like its a hatt...
👍
 
Ohh seeing as this thread has revived I can haz post of my bike upgrade?
A little less hardcore than yours Chris, more XC than DJ.

Heres a before shot


And heres an after



Got a Hayes Sole hydraulic set off a friend, not the best system but I dont do anything extreme on my bike anyway and just for fun put a HUGE 203 disk on the front, looks really out of place, ahh well you know what they say, when in Rome:sly:. Also removed the knobbly tioga mud tyres an put some Continental Double fighters on, more suited to tarmac and gravel.

Oh yea I suppose its too late now Chris but I wouldn't have gone of the the SRAM X7 shifters. I got SX5's on mine which are almost identical and Shimano Deore shifters feel much better.
 
Nice upgrade. I find my shifters to be sweet as. :indiff:

The hydros must be incredible to you? I can't remember the feeling when I switched mine, but I know any hyrdo is better than any cable brake. 👍
 
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