Hub steering concept bike

venugopal · 24th April 2008, 14:23

here are the pics of the bike ,i helped design and build,for engineering students from chennai.It is hub steered bike like in cars.It almost eliminates diving when using the front brakes.There are lots of concept bike from bimota

cheers
enginehacker

svsantosh · 30th April 2008, 14:01

too bad this thread wasnt checked out by anyone. I think your work is beyond words of anyone in this forum. Venu, How feasible is this on a Enfield bullet? Please let me know? and how stiff is the steering linkages? Are these made from Car parts?

Main point - Overall cost please???

cyclops · 30th April 2008, 14:22

hey great job mate!!
this is the first time i heard of this concept..

what are the other advantages of this setup? can you post the pics of the bimota you were referring to?

gendarmee · 30th April 2008, 15:14

wow.
interesting.
What was the total cost? and ho different is the ride now?

kkr2k2 · 30th April 2008, 20:09

hey i think i have seen a similar front suspension in a ducati or an aprilia, not sure though.

highwayblaze · 1st May 2008, 00:04

Quote:

Originally Posted by kkr2k2

hey i think i have seen a similar front suspension in a ducati or an aprilia, not sure though.

Yes you're right. Aprilia i think also has a production bike with a similar non fork front suspension setup that sells for upwards of 30000 USD. There've been several experiments by many european and japanese manufacturers. Btw this is a great project too. It'd be great if you post more about how the bike feels in comparison to a stock yezdi!

TomRider · 2nd May 2008, 01:08

Good job Venu! Congrats!

I spoke to BG the other day and he told me about this project. i 'd love to see it in action.

Rehaan · 2nd May 2008, 03:32

Wow, really suprised that noone saw this thread for so many days!

Great pics venugopal!!

Have you ridden the bike? What are the noticable differences?

cya
R

vabs78 · 2nd May 2008, 09:56

Great work venu

.

Quote:

Originally Posted by venugopal

...It is hub steered bike like in cars.It almost eliminates diving when using the front brakes.

Can you please explain us how does it reduce nose diving. I am not able to figure it out as still suspension is there for the front wheel.

Also, how can one adjust caster angle (is there one?) on this kind of setup?

im_srini · 2nd May 2008, 10:12

Wow ! This is really cool work

So in a system like this how would one define the traditional bike steering parameters like rake ?

Could we have some pictures from the front also ? How does the front wheel rotate since it seems to be on a solid axle & secured from both ends ? Did you use the spindle of a regular car ?

What would your advise be to somebody wishing to try out a concept like this - trial & error, paper, or 3D CAD like SolidWorks ?

revvedup · 2nd May 2008, 10:46

Quote:

Originally Posted by kkr2k2

hey i think i have seen a similar front suspension in a ducati or an aprilia, not sure though.

The Bimota Tesi series of bikes use such a setup. One of the Italijet scooters also uses such a setup.

airfoil · 2nd May 2008, 10:58

Commendable effort! An explanation of how it works and a review of how the bike actually handles would be interesting.

What, for example, is the experience of making a U-turn? A picture of the handle at full lock at either end may help us understand how steering is accomplished.

revvedup · 2nd May 2008, 11:25

here's pic of the bike. I must say the bike is very nicely designed.

Source Bimota Tesi 3D

The System actually offers advnatages in situations when one has to brake and steer at the the same time, not something which one would like to do on bikes with conventional suspension. Here one has to understand that during braking the weight transfer causes the front suspension to compress however with this system since the supension is horizontal so even during braking the shocks are not compressed and are only compressed due to undulations on the road which is what actually should happen ideally. Moreover since the system uses one spring instead of two telescopic forks one is saved the trouble of synchronizing the two forks, altough I am not completely sure about this bit.

venugopal · 7th May 2008, 11:59

here is a stunner ,

cheers

knob · 4th April 2011, 20:49

I'm speechless. This yezdi modded so neatly and the engineering behind it is awesome.
I am proud to be a member among you.

24th April 2008, 14:23	#1
venugopal BHPian Join Date: Apr 2006 Location: bangalore Posts: 69 Thanked: 21 Times	Hub steering concept bike here are the pics of the bike ,i helped design and build,for engineering students from chennai.It is hub steered bike like in cars.It almost eliminates diving when using the front brakes.There are lots of concept bike from bimota cheers enginehacker Last edited by Rehaan : 2nd May 2008 at 02:00. Reason: Please see the new rules on uploading images to Team-BHP in the Announcements section. I have done it for you this time.
	(2) Thanks

30th April 2008, 14:01	#2
svsantosh Senior - BHPian Join Date: Mar 2008 Location: Dubai Posts: 3,996 Thanked: 6,279 Times View My Garage	too bad this thread wasnt checked out by anyone. I think your work is beyond words of anyone in this forum. Venu, How feasible is this on a Enfield bullet? Please let me know? and how stiff is the steering linkages? Are these made from Car parts? Main point - Overall cost please???
	() Thanks

30th April 2008, 14:22	#3
cyclops BHPian Join Date: Mar 2008 Location: Pune Posts: 297 Thanked: 12 Times	hey great job mate!! this is the first time i heard of this concept.. what are the other advantages of this setup? can you post the pics of the bimota you were referring to?
	() Thanks

30th April 2008, 15:14	#4
gendarmee BHPian Join Date: Nov 2007 Location: India Posts: 741 Thanked: 28 Times	wow. interesting. What was the total cost? and ho different is the ride now?
	() Thanks

30th April 2008, 20:09	#5
kkr2k2 Senior - BHPian Join Date: Sep 2006 Location: Melbourne, Hyd Posts: 1,294 Thanked: 66 Times View My Garage	hey i think i have seen a similar front suspension in a ducati or an aprilia, not sure though.
	() Thanks

2nd May 2008, 01:08	#7
TomRider BHPian Join Date: Oct 2007 Location: KL7-KA03-NYC Posts: 340 Thanked: 4 Times View My Garage	Good job Venu! Congrats! I spoke to BG the other day and he told me about this project. i 'd love to see it in action.
	() Thanks

2nd May 2008, 03:32	#8
Rehaan Team-BHP Support Join Date: Feb 2004 Location: Bombay Posts: 24,042 Thanked: 34,074 Times	Wow, really suprised that noone saw this thread for so many days! Great pics venugopal!! Have you ridden the bike? What are the noticable differences? cya R
	() Thanks

2nd May 2008, 10:12	#10
im_srini BHPian Join Date: Sep 2006 Location: Portland Posts: 1,010 Thanked: 490 Times View My Garage	Wow ! This is really cool work So in a system like this how would one define the traditional bike steering parameters like rake ? Could we have some pictures from the front also ? How does the front wheel rotate since it seems to be on a solid axle & secured from both ends ? Did you use the spindle of a regular car ? What would your advise be to somebody wishing to try out a concept like this - trial & error, paper, or 3D CAD like SolidWorks ?
	() Thanks

2nd May 2008, 10:58	#12
airfoil BHPian Join Date: Oct 2004 Location: Hyderabad Posts: 318 Thanked: 81 Times	Commendable effort! An explanation of how it works and a review of how the bike actually handles would be interesting. What, for example, is the experience of making a U-turn? A picture of the handle at full lock at either end may help us understand how steering is accomplished.
	() Thanks

2nd May 2008, 11:25	#13
revvedup BHPian Join Date: Sep 2006 Location: Delhi Posts: 269 Thanked: 24 Times	here's pic of the bike. I must say the bike is very nicely designed. Source Bimota Tesi 3D The System actually offers advnatages in situations when one has to brake and steer at the the same time, not something which one would like to do on bikes with conventional suspension. Here one has to understand that during braking the weight transfer causes the front suspension to compress however with this system since the supension is horizontal so even during braking the shocks are not compressed and are only compressed due to undulations on the road which is what actually should happen ideally. Moreover since the system uses one spring instead of two telescopic forks one is saved the trouble of synchronizing the two forks, altough I am not completely sure about this bit.
	(1) Thanks

7th May 2008, 11:59	#14
venugopal BHPian Join Date: Apr 2006 Location: bangalore Posts: 69 Thanked: 21 Times	here is a stunner , cheers
	(1) Thanks

4th April 2011, 20:49	#15
knob BHPian Join Date: Mar 2011 Location: Kerala Posts: 71 Thanked: 6 Times	Re: hub steering concept bike I'm speechless. This yezdi modded so neatly and the engineering behind it is awesome. I am proud to be a member among you.
	() Thanks