Vintage Dirt Bike Q & A

Anything and everything about Vintage Dirt Bikes! After you Register, email nathan@alp-sys.com and let me know so I can activate you.
It is currently Fri Jun 20, 2025 10:40 pm

View unanswered posts | View active topics


Board index » Questions & Answers » Honda CR, MR & MT

All times are UTC - 7 hours [ DST ]



Post new topic Reply to topic  Page 1 of 1
  [ 2 posts ] 
  Print view Previous topic | Next topic 
Author Message
cufflink
 Post subject: MR175 gearbox ratios
PostPosted: Thu Feb 02, 2006 6:08 pm 
Offline

Joined: Tue Jan 17, 2006 6:06 pm
Posts: 3
According to Honda ads of the time, the later (77?) MR175 had a closer ratio gearbox. Can anyone tell me if that is true, & if so, what the ratios were please? And what the later engine # ID is?
Top
 Profile  
 
rayivers
 Post subject: Re: MR175 gearbox ratios
PostPosted: Sun Nov 30, 2008 5:47 pm 
Offline

Joined: Sun Nov 30, 2008 12:10 pm
Posts: 1010
Location: Connecticut, USA
Here are the ratios of the '75/'76 and the '77 MR175 gearboxes, along with the relative (upshift) relationships between the ratios in parenthesis:

MR175 ('75-'76): 3.0 (60%) 1.875 (44%) 1.3 (36%) .958 (29%) .741
MR175 ('77): __ 2.36 (46%) 1.611 (35%) 1.2 (30%) .916 (24%) .741


Better late than never, I guess... :)

Ray

_________________
'74 CR125M (175cc), '75 MR175, '82 RM250Z, '08 YZ250F, '14 Zero FX electric, '14 Zero MX electric, '18 Alta MXR electric
Top
 Profile  
 
Display posts from previous:  Sort by  
Post new topic Reply to topic  Page 1 of 1
  [ 2 posts ] 

Board index » Questions & Answers » Honda CR, MR & MT

All times are UTC - 7 hours [ DST ]

Who is online

Users browsing this forum: No registered users and 21 guests

You cannot post new topics in this forum
You cannot reply to topics in this forum
You cannot edit your posts in this forum
You cannot delete your posts in this forum
You cannot post attachments in this forum

Search for:
Jump to:  
Powered by phpBB® Forum Software © phpBB Group