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jimg1au
  • Rank:XL Board Member
  • Posts:12
  • From:Australia

Date Posted:06/02/2017 6:13 AMCopy HTML

hi
is there a way to make the xl250 gearbox close ratio i am going to use mine on a 800mtr track with some 3rd gear corners the rest is flat out straights and 1 speedway type corner
the engine will be in a elstar grasstrack frame 
thanks
jim
sydney 
australia
Davy123 #1
  • Rank:Platinum Member
  • Posts:278
  • From:Scotland

Re:CROSE RATIO GEARBOX

Date Posted:06/02/2017 8:36 PMCopy HTML

i think the TL 250 has closer ratios
tuscarawas #2
  • Rank:Diamond Member
  • Posts:553
  • From:USA

Re:CROSE RATIO GEARBOX

Date Posted:06/02/2017 9:47 PMCopy HTML

Are you serious Davy ? 
Davy123 #3
  • Rank:Platinum Member
  • Posts:278
  • From:Scotland

Re:CROSE RATIO GEARBOX

Date Posted:06/03/2017 5:29 PMCopy HTML

 It is close ratio 1,2 & 3 and wide ratio 4th and 5th..  If you swap in the TL gears to an earlier 250 gearbox you will also need to swap the shifter drum and forks because they are different on the later engines.


Admin: Edited the font only - as it was not showing through the white background colour selected.

Davy123 #4
  • Rank:Platinum Member
  • Posts:278
  • From:Scotland

Re:CROSE RATIO GEARBOX

Date Posted:06/03/2017 5:36 PMCopy HTML

its a close ratio 1,2 and 3rd gear and wide ratio 4th and 5th ..
JKCanuck #5
  • Rank:Bronze Member
  • Posts:27
  • From:Canada

Re:CROSE RATIO GEARBOX

Date Posted:06/13/2017 11:12 PMCopy HTML

 Gear ratios
               xl250               xl350             Tl250
1st.         2.352               2.500              3.000
2nd.       1.667               1.667              2.294  
3rd.        1.280               1.240              1.591
4th.         1.000               0.931              1.036  
5th          0.806               0.750              0.750 
Looks like the xl250 gearbox has the closest ratios.

jimg1au #6
  • Rank:XL Board Member
  • Posts:12
  • From:Australia

Re:CROSE RATIO GEARBOX

Date Posted:10/10/2017 9:32 AMCopy HTML

thanks for the replies


Go soothingly on the grease mud ... as there lies the skid demon! ...





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