Gearing top end

Chat about anything in here.

Moderators: James - Admin, Mick- Can Am

Gearing top end

Postby DatGuyAsh » Tue Jun 05, 2018 8:30 pm

Hello all,
I am looking at changing my gearing.. I have 14t front and 40t rear.

What is the best gearing to go with? I am currently hitting 70mph on my LTZ 400 just want that extra 5mph if possible.
Not sure what teeth to go for, any suggestions/ideas?

Thank you. :)
DatGuyAsh
90 posts or more
90 posts or more
 
Posts: 186
Joined: Sat Aug 01, 2015 8:49 pm
Has thanked: 6 times
Been thanked: 2 times
Cash on hand: 1,650.00
Town/City: Runcorn, Cheshire
Make. Enter none if you don't have one.: None
Model: None
Year of manufacture Enter 0 if none: 0

Share On:

Share on Twitter Twitter Share on MySpace MySpace

Re: Gearing top end

Postby RunningMan » Wed Jun 06, 2018 6:17 pm

IIRC you'd need to either go up one tooth at the front or drop the rear (usually by four as you'd probably not get a 33T).

1 up at the front is approximately equal to 3 down at the rear (again IIRC). So going for a 32T will give you a little more top end again but with a little sacrifice on acceleration.

Front is easier to fit, if you have the room but you need to careful that the chain doesn't catch the engine casing.

Sent from my SM-T715 using Tapatalk
2013 Yamaha YFM 700 R
NERFS
Spacers all round
15T front sprocket
User avatar
RunningMan
90 posts or more
90 posts or more
 
Posts: 1156
Images: 6
Joined: Thu Jan 20, 2011 5:02 pm
Location: Bedfordshire
Has thanked: 20 times
Been thanked: 78 times
Cash on hand: 640.00
Bank: 2,829.00
Town/City: Bedfordshire
Year of manufacture Enter 0 if none: 0

Re: Gearing top end

Postby RunningMan » Wed Jun 06, 2018 6:18 pm

Should also add, there will be gearing calculators on-line, just Google it.

Sent from my SM-T715 using Tapatalk
2013 Yamaha YFM 700 R
NERFS
Spacers all round
15T front sprocket
User avatar
RunningMan
90 posts or more
90 posts or more
 
Posts: 1156
Images: 6
Joined: Thu Jan 20, 2011 5:02 pm
Location: Bedfordshire
Has thanked: 20 times
Been thanked: 78 times
Cash on hand: 640.00
Bank: 2,829.00
Town/City: Bedfordshire
Year of manufacture Enter 0 if none: 0

Re: Gearing top end

Postby mrtigger » Wed Jun 06, 2018 6:30 pm

Also depends on how easily the quad hits 70..... If its happily bouncing off the limiter quite quickly a gearing change as above will help, if its only just getting there you'll gain no top end speed just slow your acceleration and lower your cruising rpm so it's not death revving at 65/70

Sent from my ONEPLUS A5000 using Tapatalk
Image
User avatar
mrtigger
90 posts or more
90 posts or more
 
Posts: 2350
Images: 1
Joined: Wed Jun 11, 2014 11:14 am
Has thanked: 28 times
Been thanked: 123 times
Cash on hand: 3,734.00
Town/City: essex
Make. Enter none if you don't have one.: Barossa
Model: Cheetah 250 AKA Big Fatty
Year of manufacture Enter 0 if none: 2005

Re: Gearing top end

Postby DatGuyAsh » Thu Jun 07, 2018 11:52 am

Just re-checked the sprockets, it's 15t front and 40t rear.
It gets to 70mph quick.
DatGuyAsh
90 posts or more
90 posts or more
 
Posts: 186
Joined: Sat Aug 01, 2015 8:49 pm
Has thanked: 6 times
Been thanked: 2 times
Cash on hand: 1,650.00
Town/City: Runcorn, Cheshire
Make. Enter none if you don't have one.: None
Model: None
Year of manufacture Enter 0 if none: 0

Re: Gearing top end

Postby DatGuyAsh » Thu Jun 07, 2018 11:53 am

Revs are high at 60-70 sounds like it wants to detonate lol.
DatGuyAsh
90 posts or more
90 posts or more
 
Posts: 186
Joined: Sat Aug 01, 2015 8:49 pm
Has thanked: 6 times
Been thanked: 2 times
Cash on hand: 1,650.00
Town/City: Runcorn, Cheshire
Make. Enter none if you don't have one.: None
Model: None
Year of manufacture Enter 0 if none: 0

Re: Gearing top end

Postby DatGuyAsh » Thu Jun 07, 2018 12:05 pm

I can get a 36t rear sprocket on eBay.
Would it be worth it?
DatGuyAsh
90 posts or more
90 posts or more
 
Posts: 186
Joined: Sat Aug 01, 2015 8:49 pm
Has thanked: 6 times
Been thanked: 2 times
Cash on hand: 1,650.00
Town/City: Runcorn, Cheshire
Make. Enter none if you don't have one.: None
Model: None
Year of manufacture Enter 0 if none: 0

Re: Gearing top end

Postby RunningMan » Thu Jun 07, 2018 6:20 pm

Probably, but a little bit more effort to fit.

Sent from my SM-T715 using Tapatalk
2013 Yamaha YFM 700 R
NERFS
Spacers all round
15T front sprocket
User avatar
RunningMan
90 posts or more
90 posts or more
 
Posts: 1156
Images: 6
Joined: Thu Jan 20, 2011 5:02 pm
Location: Bedfordshire
Has thanked: 20 times
Been thanked: 78 times
Cash on hand: 640.00
Bank: 2,829.00
Town/City: Bedfordshire
Year of manufacture Enter 0 if none: 0

Re: Gearing top end

Postby mrtigger » Thu Jun 07, 2018 8:44 pm

Dropping 3-5 on the rear will net you maybe 500-600rpm that's it. So maybe 5mph. Honestly if ya bike is screaming it's nuts off that often, you want something more designed towards the kind of riding you're doing. Most quads top out 7pish so by default theyre redlining on big roads

Sent from my ONEPLUS A5000 using Tapatalk
Image
User avatar
mrtigger
90 posts or more
90 posts or more
 
Posts: 2350
Images: 1
Joined: Wed Jun 11, 2014 11:14 am
Has thanked: 28 times
Been thanked: 123 times
Cash on hand: 3,734.00
Town/City: essex
Make. Enter none if you don't have one.: Barossa
Model: Cheetah 250 AKA Big Fatty
Year of manufacture Enter 0 if none: 2005

Re: Gearing top end

Postby DatGuyAsh » Thu Jun 07, 2018 10:06 pm

mrtigger wrote:Dropping 3-5 on the rear will net you maybe 500-600rpm that's it. So maybe 5mph. Honestly if ya bike is screaming it's nuts off that often, you want something more designed towards the kind of riding you're doing. Most quads top out 7pish so by default theyre redlining on big roads

Sent from my ONEPLUS A5000 using Tapatalk


I'd be more than happy with 75 MPH on my LTZ 400.
It might sound like it's screaming because it has no baffle in the exhaust sounds mint without it.

I bought the quad with the exhaust without the baffle, been told I need the exhaust model baffle to fit as no other baffle will fit it?
Might sound strange with a baffle though. :(

I am doing more road rides than off roading I rarely off road.
I don't think I can go up from 40t, if I was to find like a 44t rear would that be better or slow?
DatGuyAsh
90 posts or more
90 posts or more
 
Posts: 186
Joined: Sat Aug 01, 2015 8:49 pm
Has thanked: 6 times
Been thanked: 2 times
Cash on hand: 1,650.00
Town/City: Runcorn, Cheshire
Make. Enter none if you don't have one.: None
Model: None
Year of manufacture Enter 0 if none: 0

Next


  • Advertisement

Return to Anything Goes

Who is online

Users browsing this forum: No registered users and 3 guests

cron