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Post Info TOPIC: gearing issue for a newby


Newbie

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gearing issue for a newby
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hi guys, I am new here so forgive me if I go over old ground/ issues.

I have an 09 ttr250, it has a gear combo of 13/40. I have read a few threads on here n it seems as tho its a very high ratio.

I use my bike as a commuter, and have a second set of wheels for dirt play. mainly easy stuff with a bit of climbing as well.

my problem starts with the hills, on anything steepish my bike dies in the arse!!

I would like to change the gearing to something a bit more hill friendly, without losing the ability to do 100kph.

some advice for an old fat novice australian rider would be greatly appreciated.

thanks.



-- Edited by Bigbadbenno on Thursday 29th of October 2015 12:46:46 AM

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old, fat, new to this. but loving it!!!!!!!!!!!!!!!!

09 ttr250.



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I run 13/48 and find it great offroad. Can sit on a 100, probably revs a whisker higher than I would like to sit on that all day. But its really not too bad.

14/48 for longer higway trips?

I ride my bike offroad a couple of times a month and then commute every day, also have a second set of wheels (48T on both). Dunlop 605 on the road, front and rear and Michelin AC 10's front and rear offroad. Although this week I've been on the AC10's all week as I didn't have time to change them and heading offroad again this Sat.

You'll need a new (longer) chain I'm guessing with a 48T rear.

Cheers Leigh




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Super Guru

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Wow 40 is small!

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Pete. South Somerset, England.

03 Blue model. Renthal bars, (13/48), CRD AP2 zaust, Totally ttr's bash plate

https://m.youtube.com/channel/UCH8z1hQp6k1gM2kB5POhNfA

Moo


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Im running 13/44 on mine... Cruises at 75mph (indicated) easily enough and can be poked upto 85mph fairly easily

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Malcolm, Northamptonshire. West Anglia TRF 1996 TTR 250 Raid



Newbie

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oops. sorry about that, its a 44 rear.



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old, fat, new to this. but loving it!!!!!!!!!!!!!!!!

09 ttr250.



Super Guru

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13/44 is slightly down geared but I think you would like the steep climb power of the 13/48. It's what most people run. You can still do 65mph on road with it.

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Pete. South Somerset, England.

03 Blue model. Renthal bars, (13/48), CRD AP2 zaust, Totally ttr's bash plate

https://m.youtube.com/channel/UCH8z1hQp6k1gM2kB5POhNfA



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That would be 13/52 gearing !

powers like a train up hills

Crawls along at a snails pace when needed

but still goes to 100kph easy

I love this ratio for tight twisties, means you can use 2nd gear properly and 3rd when they straighten out a bit

Also gives you great control-ability in really rough stuff, makes good use of the TTR's torque



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2004 TTR250 - Highway Dirtbike Hand Guards, 38mm Bar Risers, D606 Front & Rear, Opened up Airbox with Twin Air Filter, Re-jetted Carby, B+B Bash Plate & Frame Guards, DIY 3mm Alloy Tail Tidy, 14/47 Gearing.

 

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