Go Back   Horizons Unlimited - The HUBB > Technical, Bike forums > Yamaha Tech
Anybody uprated their front 3AJ brake? Anybody uprated their front 3AJ brake?
Register FAQ Calendar Today's Posts
Yamaha Tech Originally the Yamaha XT600 Tech Forum, due to demand it now includes all Yamaha's technical / mechanical / repair / preparation questions.
Photo by Andy Miller, UK, Taking a rest, Jokulsarlon, Iceland

I haven't been everywhere...
but it's on my list!


Photo by Andy Miller, UK,
Taking a rest,
Jokulsarlon, Iceland



Reply
 
LinkBack Thread Tools Display Modes
  #1  
Old 20 Dec 2004
Registered Users
Veteran HUBBer
  
Join Date: Nov 2002
Location: Surrey, UK
Posts: 183
Anybody uprated their front 3AJ brake?
I am lookings for some information.

Has anybody upgraded their front brake, perhaps to a two piston caliper (slider/floating), from the original one piston caliper? The 1990 XT600 introduced a Nissin two piston caliper, but the mounting is different. I am not sure who the original manufacturer was or if a "beefier" straight bolt-on caliper is available from another
model? The original's two mounting holes are approx 11cm apart.

Any guidance or advice would be appreciated.

Thanks, Geoff
Reply With Quote
  #2  
Old 27 Dec 2004
Registered Users
New on the HUBB
  
Join Date: Dec 2004
Location: england
Posts: 1
Hi dont know if it will help you but I ve got a Nissan 2 pot front caliper that was fitted to the 1990 xt. I bought it for a 86 xt 600e Im restoring and it wont fit without some form of modification .
Reply With Quote
  #3  
Old 27 Dec 2004
Registered Users
Veteran HUBBer
  
Join Date: Nov 2002
Location: Surrey, UK
Posts: 183
Hi George,

Thank you for the reply.

It looks as though you have the problem I was foreseeing with the later caliper. I have a little bit of information (from the 1990 XT600E Model Guide) that may help us both, and I will send you an email.

I was hoping there may be a two piston sliding caliper from an old model (Yamaha, Honda, etc...), that may have fitted straight on and save the need for any modification.

Best regards
Geoff
Reply With Quote
  #4  
Old 28 Dec 2004
Registered Users
Veteran HUBBer
  
Join Date: Aug 2001
Location: sunny England
Posts: 790
hi, i have the 2pot nissin on my 1997 XT600E and the best you can say is "adequate". its not bad for a dual sport bike i suppose but if you spend all your time on road like me you soon want something better. (especially on a supermoto). 1st(and cheapest) thing to try is a braided hose, this will give your brake better feel and power.
i want a bigger disc but then the original caliper needs repositioning, and if i have to do that theres no point putting the naff one back on so i need a better one from some other machine, then an adapter bracket must be made for the new caliper/disc positioning. not too much of a problem making the parts but if i had a more common bike (honda, KTM) i could do it off-the-shelf. i think i will go for a 4pot off a suzuki bandit, anything more is ott and parts are cheap+easy on ebay

------------------
dave
__________________
dave
Reply With Quote
  #5  
Old 28 Dec 2004
Registered Users
Veteran HUBBer
  
Join Date: Nov 2002
Location: Surrey, UK
Posts: 183
Hi Dave,

A braided hose is a good way to go, and I have a Goodridge hose to fit. Hopefully I will be able to upgrade the hose and caliper at the same time.

Your comment of "i think i will go for a 4pot" - I think you have to be a bit careful with a 4-pot, as many are too wide for a spoke wheel. The other thing to keep in mind is that it will not be a floating caliper, and so should be fitted with a floating disc.

I think your '97 XT600 has a number of options with its' mounting lugs. Unfortunately my older machine has different spacing of its' mounting lugs, and may not have an easy solution. I guess I will need to look into a mounting adapter.

Ciao, Geoff
Reply With Quote
  #6  
Old 30 Dec 2004
Registered Users
Veteran HUBBer
  
Join Date: Aug 2001
Location: sunny England
Posts: 790
hmmm, good thinking geoff, i never thought of that. ive gone down to a 17" rim instead of 21" on the front, so the spoke angles will give me a few more mm, and a larger disc should give a few more, but still it needs careful consideration. there must be a few bikes out there with floating 4pot calipers,
or,
maybe even easier, is to machine a disc carrier to fit the XT hub and mate it to another bikes disc. then spares will be no problem and i wont have to worry about a floating caliper.

------------------
dave
__________________
dave
Reply With Quote
  #7  
Old 12 Jun 2007
Registered Users
New on the HUBB
  
Join Date: Jun 2007
Location: Canada BC
Posts: 11
Hey I need that caliper!
Quote:
Originally Posted by chikengeorge View Post
Hi dont know if it will help you but I ve got a Nissan 2 pot front caliper that was fitted to the 1990 xt. I bought it for a 86 xt 600e Im restoring and it wont fit without some form of modification .
Just posted looking for that caliper! Want to sell it? Good shape?

Zombie Master(Neil)
Reply With Quote
  #8  
Old 12 Jun 2007
Brian Williams's Avatar
Contributing Member
Veteran HUBBer
  
Join Date: Oct 2006
Location: england
Posts: 137
Hi, would it not be possible to get lower fork from later bike and fit later brake caliper .
__________________
rust & dust
Reply With Quote
  #9  
Old 14 Jun 2007
Registered Users
Veteran HUBBer
  
Join Date: Nov 2002
Location: Surrey, UK
Posts: 183
Hi Brian,

I'm afraid I don't know the answer to your question, but I have been wondering about a different solution.

The XT750Z Super Tenere has the same wheel size and fork length, plus a twin front disc set-up. The downside appears to be that a complete front-end would be needed: Triple Tree, Wheel, etc..... Has anybody done this?

Thanks,
Geoff
Reply With Quote
  #10  
Old 21 Jun 2007
Registered Users
HUBB regular
  
Join Date: Jan 2002
Location: Scotland
Posts: 66
Quote:
Originally Posted by GeoffE View Post
Hi Brian,

I'm afraid I don't know the answer to your question, but I have been wondering about a different solution.

The XT750Z Super Tenere has the same wheel size and fork length, plus a twin front disc set-up. The downside appears to be that a complete front-end would be needed: Triple Tree, Wheel, etc..... Has anybody done this?

Thanks,
Geoff

I was thinking about this myself, I was wondering if the super ten forks are the same diameter as the 600? I dont want to go putting new triple clamps etc on the bike, I'm curious as to whether this is a total non starter or not. Would you have to fit new races for the super ten triple clamps etc to fit?

My XT has been fitted with a KLE front end, with a bigger disc, and braided hoses, but still, the breaking could be better. I fitted goodrich hoses and decent pads on my old DR600 Raider, which also had a fork brace fitted, and it stopped great. Maybe a beefy fork brace steadies up the front enough to allow the bike to break better?

Pete
Reply With Quote
Reply

« Previous Thread | Next Thread »

Currently Active Users Viewing This Thread: 1 (0 Registered Users and/or Members and 1 guests)
 

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts
BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are On

 
 

Announcements

Thinking about traveling? Not sure about the whole thing? Watch the HU Achievable Dream Video Trailers and then get ALL the information you need to get inspired and learn how to travel anywhere in the world!

Have YOU ever wondered who has ridden around the world? We did too - and now here's the list of Circumnavigators!
Check it out now, and add your information if we didn't find you.

Next HU Eventscalendar

ALL Dates subject to change.

2025 Confirmed Events:

  • Virginia: April 24-27 2025
  • Queensland is back! May 2-4 2025
  • Germany Summer: May 29-June 1 2025
  • CanWest: July 10-13 2025
  • Switzerland: Date TBC
  • Ecuador: Date TBC
  • Romania: Date TBC
  • Austria: Sept. 11-14
  • California: September 18-21
  • France: September 19-21 2025
  • Germany Autumn: Oct 30-Nov 2 2025

Add yourself to the Updates List for each event!

Questions about an event? Ask here

See all event details

 
World's most listened to Adventure Motorbike Show!
Check the RAW segments; Grant, your HU host is on every month!
Episodes below to listen to while you, err, pretend to do something or other...

Adventurous Bikers – We've got all your Hygiene & Protection needs SORTED! Powdered Hair & Body Wash, Moisturising Cream Insect Repellent, and Moisturising Cream Sunscreen SPF50. ESSENTIAL | CONVENIENT | FUNCTIONAL.

2020 Edition of Chris Scott's Adventure Motorcycling Handbook.

2020 Edition of Chris Scott's Adventure Motorcycling Handbook.

"Ultimate global guide for red-blooded bikers planning overseas exploration. Covers choice & preparation of best bike, shipping overseas, baggage design, riding techniques, travel health, visas, documentation, safety and useful addresses." Recommended. (Grant)



Ripcord Rescue Travel Insurance.

Ripcord Rescue Travel Insurance™ combines into a single integrated program the best evacuation and rescue with the premier travel insurance coverages designed for adventurers.

Led by special operations veterans, Stanford Medicine affiliated physicians, paramedics and other travel experts, Ripcord is perfect for adventure seekers, climbers, skiers, sports enthusiasts, hunters, international travelers, humanitarian efforts, expeditions and more.

Ripcord travel protection is now available for ALL nationalities, and travel is covered on motorcycles of all sizes!


 

What others say about HU...

"This site is the BIBLE for international bike travelers." Greg, Australia

"Thank you! The web site, The travels, The insight, The inspiration, Everything, just thanks." Colin, UK

"My friend and I are planning a trip from Singapore to England... We found (the HU) site invaluable as an aid to planning and have based a lot of our purchases (bikes, riding gear, etc.) on what we have learned from this site." Phil, Australia

"I for one always had an adventurous spirit, but you and Susan lit the fire for my trip and I'll be forever grateful for what you two do to inspire others to just do it." Brent, USA

"Your website is a mecca of valuable information and the (video) series is informative, entertaining, and inspiring!" Jennifer, Canada

"Your worldwide organisation and events are the Go To places to for all serious touring and aspiring touring bikers." Trevor, South Africa

"This is the answer to all my questions." Haydn, Australia

"Keep going the excellent work you are doing for Horizons Unlimited - I love it!" Thomas, Germany

Lots more comments here!



Five books by Graham Field!

Diaries of a compulsive traveller
by Graham Field
Book, eBook, Audiobook

"A compelling, honest, inspiring and entertaining writing style with a built-in feel-good factor" Get them NOW from the authors' website and Amazon.com, Amazon.ca, Amazon.co.uk.



Back Road Map Books and Backroad GPS Maps for all of Canada - a must have!

Your ad could be here, on EVERY page of the HUBB, or the whole website, or as many as you like!

New to Horizons Unlimited?

New to motorcycle travelling? New to the HU site? Confused? Too many options? It's really very simple - just 4 easy steps!

Horizons Unlimited was founded in 1997 by Grant and Susan Johnson following their journey around the world on a BMW R80G/S.

Susan and Grant Johnson Read more about Grant & Susan's story

Membership - help keep us going!

Horizons Unlimited is not a big multi-national company, just two people who love motorcycle travel and have grown what started as a hobby in 1997 into a full time job (usually 8-10 hours per day and 7 days a week) and a labour of love. To keep it going and a roof over our heads, we run events all over the world with the help of volunteers; we sell inspirational and informative DVDs; we have a few selected advertisers; and we make a small amount from memberships.

You don't have to be a Member to come to an HU meeting, access the website, or ask questions on the HUBB. What you get for your membership contribution is our sincere gratitude, good karma and knowing that you're helping to keep the motorcycle travel dream alive. Contributing Members and Gold Members do get additional features on the HUBB. Here's a list of all the Member benefits on the HUBB.



All times are GMT +1. The time now is 04:39.

Contact Us - Horizons Unlimited Motorcycle Travellers Website - Archive - Privacy Statement - Top