![Reply](https://www.horizonsunlimited.com/hubb/images/buttons/reply.gif) |
|
![Old](https://www.horizonsunlimited.com/hubb/images/statusicon/post_old.gif)
19 Mar 2010
|
Registered Users
Veteran HUBBer
|
|
Join Date: Dec 2008
Location: Denmark
Posts: 1,417
|
|
I've got 14, 15 and 16 cs sprockes, and 45 and 47 at the rea, so lots of possible choices. I also have a new did vx chain lying around
The plan was to ride 15/47 for everyday, and change the cs to 14 for some really fun (used that gearing for an enduro = perfect) and 16/47 for roadtrips on the highway. I bout a chain with extra lengt.
The time will tell what i figure out, i just know its nice to have options. I''ve modfied the Cs sprocket-cover so I wont have to take the gearlever off, saves time and effort.
I'd say go with a 14cs and try it out, it wont kill swingarm or its protection, and you can use stock chain. The bike doesn't gain "much" but it gives it more lov end grunt, and makes the bike more rev-able. A 15/47 is not as agressive as 14/45. btw 15/47 can be done with stock gearing to.
|
![Old](https://www.horizonsunlimited.com/hubb/images/statusicon/post_old.gif)
22 Mar 2010
|
![BlackDogZulu's Avatar](https://www.horizonsunlimited.com/hubb/images/avatars/Animal045.jpg) |
Registered Users
Veteran HUBBer
|
|
Join Date: Oct 2008
Location: West Wales, UK
Posts: 753
|
|
Just to be controversial: I have gone down one tooth on the gearbox sprocket on a couple of bikes (one an XT660R) with no ill effects at all. It will wear the chain slightly faster, as each link turns through a bigger angle, but that's all. No new chain to buy, and it's an easy job to change. It's one of the cheapest and easiest ways to enhance performance that I know of.
Simple way to see what the effect of a change is - divide the rear sprocket teeth by the front. Standard is often 15/45, which gives you 3.00. Going to a 14T on the front would give you 3.21 (lower gearing, better acceleration, lower top speed). Incidentally, that's a change of about 7%, which is quite noticeable, believe me. The only advantage to changing the rear is that you get to make a finer change, as one tooth on the front is equivalent to roughly three on the rear. 14/47 would be a ratio of 3.36, which is 12%, quite a difference.
|
![Old](https://www.horizonsunlimited.com/hubb/images/statusicon/post_old.gif)
22 Mar 2010
|
Registered Users
Veteran HUBBer
|
|
Join Date: Feb 2010
Location: Devon UK
Posts: 123
|
|
Fantastic, thanks both for the information.
7% better acceleration is definitely worth having and will suit me better as I don't enjoy the XT on motorways and prefer the twisty county lanes at a lower speed.
I have scrapped the 13 tooth front sprocket idea and ordered 14/47 sprockets earlier today. I will do the front sprocket alone first and add the 47 later. Tyres should be here tomorrow too.
|
![Old](https://www.horizonsunlimited.com/hubb/images/statusicon/post_old.gif)
22 Mar 2010
|
Registered Users
Veteran HUBBer
|
|
Join Date: Feb 2010
Location: Devon UK
Posts: 123
|
|
Now that is a very clever tool, I like it.
It also confirms the 7% and 12% changes to be expected.
|
![Old](https://www.horizonsunlimited.com/hubb/images/statusicon/post_old.gif)
23 Mar 2010
|
![BlackDogZulu's Avatar](https://www.horizonsunlimited.com/hubb/images/avatars/Animal045.jpg) |
Registered Users
Veteran HUBBer
|
|
Join Date: Oct 2008
Location: West Wales, UK
Posts: 753
|
|
Quote:
Originally Posted by 03XT600E
Now that is a very clever tool, I like it.
It also confirms the 7% and 12% changes to be expected.
|
[phew] My maths is still up for it, eh?
:-)
|
![Old](https://www.horizonsunlimited.com/hubb/images/statusicon/post_old.gif)
23 Mar 2010
|
Registered Users
Veteran HUBBer
|
|
Join Date: Feb 2010
Location: Devon UK
Posts: 123
|
|
Yes your maths is good
My sprockets arrive tomorrow and as I still have the back wheel off from changing the tyre I could fit both sprockets.
Obviously the chain will still fit if I fit the 14 tooth front sprocket but will the existing chain still fit with 14/47?
Jens you mentioned that you have modified your front sprocket cover so that you don't need to take the gear change lever off. Did you just cut off the piece of plastic where the bolt hole is?
Last edited by 03XT600E; 23 Mar 2010 at 21:15.
Reason: To add sprocket cover question
|
![Old](https://www.horizonsunlimited.com/hubb/images/statusicon/post_old.gif)
23 Mar 2010
|
Registered Users
Veteran HUBBer
|
|
Join Date: Dec 2008
Location: Denmark
Posts: 1,417
|
|
My boddy helped me make a new cover in aluminium. Will post a pic on monday
|
![Old](https://www.horizonsunlimited.com/hubb/images/statusicon/post_old.gif)
24 Mar 2010
|
Registered Users
Veteran HUBBer
|
|
Join Date: Feb 2010
Location: Devon UK
Posts: 123
|
|
I wish I had buddies like that
Fitting the header pipes, marving silencer and pipercross filter did not make a noticeable difference to the performance but the second dyno next week will be able to tell for sure one way or the other.
On a 30 mile ride last week it runs fine, acceleration is as smooth as before, no lurching, no hesitation but there were a couple of pops/small backfires on deceleration so it might have leaned out a bit with the modifications.
Maybe I need to wind the mixture screw out 1/2 a turn?
It's possibly because there is no gasket in between silencer and headers. I bought a graphite one but there is no room to get one in as the parts are a tight fit without.
Gotta say I am loving the 14/47 sprockets, just what I wanted. It's great up hills in every gear.
Last edited by 03XT600E; 29 Mar 2010 at 18:36.
|
![Old](https://www.horizonsunlimited.com/hubb/images/statusicon/post_old.gif)
29 Mar 2010
|
Registered Users
New on the HUBB
|
|
Join Date: Feb 2010
Location: Lincolnshire
Posts: 14
|
|
I've been looking at silencers, how do you find the marving silencer?
Did you need to buy a new chain when you changed the sprockets?
|
![Old](https://www.horizonsunlimited.com/hubb/images/statusicon/post_old.gif)
29 Mar 2010
|
Registered Users
Veteran HUBBer
|
|
Join Date: Dec 2008
Location: Denmark
Posts: 1,417
|
|
You can use he following on a stock chain for sure (i've tried)
15-45 (stock)
15-47
14-45
14-47
ANd ofcourse thing in between, as 15-46 and 14-46 aswell. You can probably gear it a bit higher asweel, but i havent tried. 16-45 should fit to.
I forgot to take photos of my cs-sprocket cover tho'
|
![Old](https://www.horizonsunlimited.com/hubb/images/statusicon/post_old.gif)
3 Apr 2010
|
Registered Users
Veteran HUBBer
|
|
Join Date: Feb 2010
Location: Devon UK
Posts: 123
|
|
xtremity afaik the marving is not performance enhancing. It should pass the M.O.T though and I like the chrome look. It's a couple of kilos lighter than the stock but no way to get inside the marving if you wanted to.
I used the same chain with the 14/47 sprockets.
For me I love to ride on twisty country lanes, there are loads near me. I am not interested in high speeds. Just to test it today it goes 80 at 6000 RPM but I spend most my time at between 30 and 60 mph.
I actually want to try 13/50 sprockets if they do them to fit the XT600E, anyone know?
Bike runs smoothe, throttle response still feels good after the modifications (headers, silencer, snorkel off, piperx filter, iridium plug), no lurching or stuttering. Just the occasional pop when riding downhill with no throttle and when letting off from full throttle.
It may be because there was no room to fit a gasket between headers and sliencer but the clamp is very tight.
My air/fuel screw was exactly 4 turns out, I tried 4 1/2 and 5 turns out.
Still runs the same.
|
![Old](https://www.horizonsunlimited.com/hubb/images/statusicon/post_old.gif)
3 Apr 2010
|
Registered Users
Veteran HUBBer
|
|
Join Date: Aug 2001
Location: sunny England
Posts: 790
|
|
Quote:
Originally Posted by 03XT600E
Kedo do one that is performance enhancing but not street legal so I guess wont pass an M.O.T here in the UK.
|
i assume your talking about the whole exhaust system? the law has no say in what downpipes you use, its the endcan that is stamped and thats not important these days, its the testers "opinion" that counts
i have the motad pipes with lazer pro'duro can, the packing has blown out long ago and its well loud but when the tester questions it its fully stamped up and ive kept the certificate from lazer so he says "well thats fair enough then...."
and, performance wise, dont expect much whatever you spend on it, its a 40hp on a good day air cooled single. if you want performance get a KTM husky husaberg competition bike and service it every 1000mi
__________________
dave
|
![Old](https://www.horizonsunlimited.com/hubb/images/statusicon/post_old.gif)
7 Apr 2010
|
Registered Users
Veteran HUBBer
|
|
Join Date: Dec 2008
Location: Denmark
Posts: 1,417
|
|
Quote:
Originally Posted by Jens Eskildsen
My boddy helped me make a new cover in aluminium. Will post a pic on monday ![Smile](https://www.horizonsunlimited.com/hubb/images/smilies/smile.gif)
|
Well, here it is, "slightly" delayed. Its nicely made by my mate, and it makes it a lot easier to change the sprocket.
|
![Old](https://www.horizonsunlimited.com/hubb/images/statusicon/post_old.gif)
8 Apr 2010
|
Registered Users
Veteran HUBBer
|
|
Join Date: Feb 2010
Location: Devon UK
Posts: 123
|
|
I have the kedo/devil headers, piperx filter, snorkel off and a marving silencer which I bought because it is road legal and will pass the MoT.
But the marving silencer is restricting the bike so I need a second hand performance enhancing silencer before the next dyno in 11 days time.
So if anyone is selling one or sees one on Ebay for a 4PT please let me know.
Last edited by 03XT600E; 8 Apr 2010 at 16:55.
Reason: paris dakar q
|
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
HTML code is Off
|
|
|
|
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...
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.](/stuff/ripcord/ripcord-logo-250.jpg)
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!](/stuff/grahamfield/graham-field-2021-280.jpg)
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!
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.
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.
|
|
|