Simplified: Telescopic fork vs Upside-down fork - Which one’s better? | PowerDrift
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- Опубліковано 22 сер 2024
- Simplified is a new series on PowerDrift that aims to make automotive concepts, technology and ideas as easy to understand as possible. These short videos take the questions you have and clear the air around the what, how, why and when. In this episode, Shumi is answering one of the more popular of the questions we get -- the difference between a right-side-up, or normal telescopic fork and an upside-down fork. And to be honest, the difference is smaller and more nuanced than you think!
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Hey #PDArmy, we hope this clarified your doubts! Hit that Like button if it did! And let us know below what more you'd like us to cover!
Next video on bike gears why do we need to change gears (upshifts and downshifts) what is the ideal speed to keep a particular gear or change a gear
Can we have a video on break and clutch adjustable livers how does it work and what difference it makes with normal non adjustable once...
Hub Center steering ( motorcycle) Vyrus , pls do a episode on this topic, pls......
Can u make the next video on engine cooling systems (like air-cooled, liquid cooled, etc.)
Neatly explained, great video
Every School needs a Teacher like Shumi... ❤️
@@jayakrishna2305 stupidity level of this comment 9999999
Well I am ok if this comment seems to be stupid
@@jayakrishna2305 What’s wrong with becoming a mechanic?
People who are have a passion for motorcycling and does go for long hauls on their motorcycle or do tracks or do off-roading need to have this knowledge on need-to-know basis. This knowledge sharing and understanding is not for all.
Its not for the average joes or jayakrishnas (as it seems here)
@@jayakrishna2305 What Shumi explained was something abt Spring Action n Fluid Mechanics... Well that brings me to a question... Are you an Arts/Commerce Student?
Hey PD, could you please make an episode on different types of motorcycle chassis - trellis and perimeter frames, single and double downtube, etc. It would be interesting to understand their pros and cons. Thanks.
Good idea
+1
Good Topic!
Yes
Definitely interested
These segments remind me of Ari Hennig's MC Garage videos that he used to do a couple of years ago.
he still does that with revzilla. called as "the shop manual"
He still does those series... Very informative 🙏
@@Thegeekishnerd13 Yeah I know but most Shop Manual videos feel a bit more technically inclined than both Simplified and MC Garage. Just a feeling. Cheers.
Yes this is our indian version of that and I always like to hear from Shumi.
When is the next part of Holy shift coming???? Absolutely loved the last one.
Yes please
Need an explanation about the differences between a box section Swingarm and an aluminium swingarm. And why swingarms are related to handling.
Yes
+1
Good Topic!
Swingarms directly are related to handling. They are vertical pivot one end of which has the rear wheel of bike connected with it and the other end is connected to Frame of bike. Swingarms can be one sided and 2 sided. Weight of swingarm, it's construction etc affects the handling in either way be it good or bad. An aluminum swingarm is better than box section swingarm cuz it's a cast or forged part which is lighter than the box section swingarm and will imply lighter and easy controls and thus better maneuverability and improving handling, moreover a forged aluminum swingarm will have more structural integrity than the cast swingarm cuz of the arrangement of the aluminum particles in it and will be lighter too. A carbon fiber swingarm will be even better than aluminum cuz it's lighter than aluminum and more stronger than aluminium . That's the reason why forged alloy wheels of cars are better than die cast wheels (only on the asphalt). The arrangement of particles while forging gives them more structural integrity than the cast where the metal is just melted poured in a die and then made. Hope you got your answer pal.
@@manthenvashishth3769 thanks I got it 🙌
suggestions for topics 😂:
1.2 ,3,4 valve engine
2.rider triangle
3.sprockets
As expected shumar is that friend who teach you 10 mins and pass you the exams. thanks
Shumi please provide us the regular bike reviews more often. We just adore the way you explain everything to noobs like me❤️
I had a question. Why did bike manufacturers switch to monoshock suspensions for the rear passenger when a telescopic suspension seems like it would be more comfortable? Also, am I wrong in thinking it would be more comfortable? Seems 2 is better than one.
That's a very faulty assumption, telescopic forks have two legs therefore requiring two sets of wiper which will give twice the stiction, many times more if they are gummed up by dirt. The reason why the motorcycle industry hasn't switched to linkage forks (either one or two-legged) is because of economy of scale and consumer perception, most bikers care so much about looks they want the manufactures to sacrifice improvement in function to keep the aesthetics; you don't see telescoping shocks for the front wheels of cars, unfortunately MTBs followed in motorcycles footsteps because telescopic forks came first on motorcycles. A well designed linkage is always better than two giant sliding tubes, it can offer less brake dive, less unsprung weight, more small bump sensitivity, be virtually maintenance free and make use of the plethora of different rear shocks already on the market.
This series is really informative. Just a suggestion discussion on drum brakes and disc brakes. It also can feature advantages of ABS
Great video Shumi sir!!! Please talk about different types of *swingarms* in next video
Can you make a video about best oil to run your motorcycle on , the best tyres to run a motorcycle on and DIY service pack to help riders maintain their motor cycles (pretty please)
about oil there's already a video made by them open the channel its 6-7th video
I have a little dilemma up here... "MC garage" on the other hand, does have a completely different opinion, stating that aesthetics is the major difference. I'm confused.
Damn I never knew forks had male and female parts♀️♂️😂
Even sockets 3pin plugs are also nomenclatured as male female for easy understanding 😅😅
anytime any long thing goes into a hollow thing, they are named male and female... Now you know!!!
._.
Welcome to technical terms lol
We use it everyday in electronics
Anything which goes inside is a male part. 🙂
Also what I have read is that component of unsprung mass is lesser for upside down forks , making the overall job of suspension unit easier .
👍👍👍
Yes but explaining unsprung mass in itself is a whole Simplified episode
Suggestion -
normal clutch systems & hydraulic clutch systems
Single & multiple cylinder engines
Explained really well …. All these years of doubts based on this topic just got erased after seeing this video..
thanks a lot..
You missed very important part: upside down forks installations have much less unsprung weight. This is crucial for better handling, turning and response for road imperfections. Both steering and comfort will benefit from USD.
Why should we prefer front brake more than the rear
I completely agree with the cooling method comments and the suspension comments. The particular means of cooling or suspension is given on a bike for optimum performance. Everything should not be about just asthetics, looks or spec bragging rights.
As always...great work...can you make a video explaining the torque and horsepower aspects? How do producers measure them?
Thanks Gaurav! That might be a good idea; we shall try!
Explained very clearly, precisely and kept it simple with basic explanation👌🏼
Very clearly explained! I hope this clears up the heads of those R15 and MT15 owners who keep complaining that their bikes are inferior to ones sold overseas.
What's the idea behind having open chain rather than a covered one like the commuters.. any advantage apart from asthetics
I have listened to all your podcasts till now Schumi. Thanks for clearing my doubts. Keep rocking bro.
Being an engineer myself, it was just a breeze watching through and understanding every bit of what you just explained, much like reading through a well written book. Good Job
Can you do a video on rear suspension too...there are many mono shock...dual shock and then adjustability terms like front load and pre load
Can you make a video about difference in coolant type and colour
I think the Dampers which controls the movement of spring are absent in E-Rickshaws. 😂😂
They use leaf springs not the spring and damper setup (called McPherson strut).
Suspensions also have various types. It is not a one size fits all thing.
E rickshaws don't bounce back and forth. They just transmit whatever they feel to you. Every undulation. This is the hallmark of leaf springs. They are made for rigidity and stability.
Hence used in commercial vehicles and trucks. Their use in e rickshaws isn't correct but is done to keep costs low. Most of e rickshaw manufacturers aren't really very engineering savvy, not very organized either. They need not be. They are sold purely on cost, not engineering prowess.
Awesome coverage on front suspensions........ Would be great if sensei shoomi would have covered rear suspensions as well
What a teacher... Absolutely awesome! Can you please do a video on how exactly does a cornering ABS work and how different it is from a conventional ABS?
Great video as always PD! Can we expect more of Shumi and Varun’s podcasts ?
That's the reason behind why activa has poor suspension build due usd and also the reason for break fail in activa's
I was hoping you'd include the part about sprung and unsprung weight difference
There’s also the idea of mounting heavier things closer to the CoG. But I thought 4 things esp the idea of unsprung weight would complicate the issue
Good topic covered 👌🏻.
Can you please cover the topic about the different grades of fork oils and their applications.
As a motorcycle enthusiast what I like is how you explain at engineering level in very simple form. Thank you brother.
Please do a comparison between oil cooling vs liquid cooling 🙏
Wish you also talked about unsprung mass and the benefits in handling that comes when you reduce it. USD helps in that as wel.. also it's normally a challenge to keep the CoG low when you use a USD at the front.
According to my brain :-
Suspension is a suspension
Wt ever it may be*
are you attending your online classes ?
Hey PowerDrift, could you guys please make a video on different types of engine: v-twin, inline 3, inline 4, etc and their impact on the performance. Also, a video on CC, BHP, Torque would be really helpful. TIA!
a little misunderstanding that seems like all the people in the world did is, and upside down front fork is actually a telescopic fork too, but inverted. so saying "telescopic vs upside down" or "telescopic and upside down fork" differences is actually wrong.
Also, with upside down forks the bigger and heavier part is “steady” while the smaller and lighter part is traveling up and down with the wheel... therefore, it’s less mass to get it’s movement absorbed by the springs and dampeners (and ultimately by the chassi)
in the old days all forks truncheons were covered with rubber protection, but ppl thought it marred the looks so now the
4:32 OH shit 🤣🤣🤣
Hi shumi
Nice to see and hear such content for new generation bikers pls make content on disk brake and drum drake and abs on both the brakes
Hey this video is very useful for every biker thank you Power Drift and Shumi sir
Please make an another video on chain drive vs belt drive vs shaft drive which one is better, and there advantage and disadvantage. I hope that you will make a video on this subject please Shumi sir
There is another reason for USD forks on performance motorcycles. The part that moves about is the stanchion which weighs less than the female part (containing oil, springs and the weight of the fork itself). There fore, the weight of the moving component is lesser giving a better performance improvement.
More importantly the lighter part is farther from the CoG as well as mounting points. So performance is better
You have a good teacher in you Shumi.
That's a grade school level of explanation, easy to understand. Thank you so much.
Need a video about engine braking and rev matching
Can you please do one video on the engine cooling system? Liquid cooled vs Air cooled/oil cooled.
Thanks for the detailed explanation, really helpful. Can we get to know about Cylinders in engine and how do they function. Thanks in advance!
Shumi should start speaking on meaning of life and life lessons as well... Powerdrift podcast have nothing but life changing...!! Kudos..👍👍
The explanation was very clear as compared to any other videos out there
Can You Please Explain About Headlight,Led vs Halogen
Thank you so much sir, people are so much focused on having USD forks, disregarding their requirements and jump to costlier motorcycles on basis of that. It cleared up that we don't necessarily need USD forks on a minor 200cc motorcycles.
Great video PD and Shumi your screen presence is amazing. My two cents- apart from the structural function, upside down forks also result in a lower unsprung mass thereby creating a positive impact on handling and steering among other things.
Great info pd,
Can you explain the different engine setups ? Single , double cylinder, inline four, Vtwin etc ?
wow. I have never seen such a simple and brief explanation as this yet very clear and effective. good job
If the front fork feels too soft, there may be too little oil in it. If it feels too hard, there is probably too much oil (or dirt) in it. If the front fork falls inwards or outwards in the curves, the fork crowns must be adjusted by either raising or lowering them. If one stuffing box starts to leak, you should still replace both at the same time. The risk that the second stuffing box will also start to leak is high.
N3xt one mono shock vs dual shock for rear side. Good video this.
Very good series.
Dumb people wont believe normal experienced folks, But if it comes from a good influencer, Its great !
You might have missed out another technical benefit of USD forks over RSU forks, i.e: unspring mass reduction. The female slider block is usually much heavier than the stanchion, which means the RSU suffer from the disadvantage of having most of its mass in the un-sprung section, which translates to poorer chassis stability to road undulations and vibrations. More sprung mass ratio typically leads to improved handling at the cost of more expensive/sturdier suspension systems.
I can't stress this enough, best and most concise explanation ever !!
Great explaination! Plz make something Engine working. Block, crankshaft, compression ratios etc
Thank you. Was having trouble trying to understand this.
Thank you. So what's your take on the r15 getting conventional forks in india and usd forks abroad ? Is it because of our bad roads? Ergo prone to much frequent oil seal breaking ?
Basic suspension tuning with respect to adjusting sag, preload, compression and damping for one’s own weight. I know dave moss is the OG is this field, but it would be nice to get a basic guide from Shumi. Cheers
way you elaborating is really very effective for the viewer , which don't have much technical knowledge .and my question is difference between spokes wheel and alloys ? like even bigger bikes use spokes like africa twin many more!
Clear and neatly explained
thank you for the seal cover suggestion .. that's gonna help me later in term of maintenance ..
Great explanation, thanks shumi. Can you plz also clarify the myths of engine breakdown, I mean why do we have to drive fresh new bikes slow, for a few hundred kilometers ??
Thanks Shumi for the knowledge you give through Simplified. I would like see a video on difference between oil cooled engine & air cooled engine. Hope to see this soon..
Guys let's request them to do on ... when air cooling makes sense and when oil cooling actually makes sense..
Also it is more comfortable to ride a Right side up fork in Indian roads because of the potholes, whereas USD gives more stability in racing or track like roads i.e USD moves less or is a bit stiff
Fixed Vs floating brake calipers..would love it if you covered those!
gosh!! splendid video!! I really had this doubt about forks and had no clue on what precisely to google. you people made my day, PD!!!
thank you for this series, powerdrift Shumified
An addition to Schumi's summary is the unsprung weight advantage that USD forks offer (lighter stanchion adding to sprung mass)which is a significant factor in performance motorcycle handling & braking. On a street bike or lighter machine, the weight difference is marginal & a USD is almost an expensive cosmetic upgrade.
Shumi is like that professor In college who can get you engaged in the class no matter what the topic is 🙌
Great video by shumi.
Can you speak about chain and sprockets
Present sir in your class. If teacher is u, students can learn so easily. Love u @Shumi sir
This question piqued me and as soon as i wanted to search up on it, i almost instantaneously knew that PowerDrift would have it covered 🙂
Simply terrific explanation! Every school needs a teacher like him. Bravo! Thanx
Awesome Shumi! I love learning details of the things I love!😅
I request you to take the topic of exhausts: stock vs modified/slip-on! What difference does it make in performance and does it reduces the engine life? Also, is a change in better air filter mandatory with change in exhaust?
Hi Shumi, This playlist is amazing and the way you explain it, well I wish you were my school teacher for every class. From the topic of USD and telescopic suspension systems, I would request you to also shed some light on rear suspensions: Mono and the dual set up. Second topic I can think of would be lights: halogen, LED and projectors. Also since LEDs generally blind the oncoming traffic even when their throw isn't that great from a rider's perspective. Generally LEDs are very powerful. Please also explain use of auxiliary lights.
3rd and the most important : With riding schools out of reach and knowledge of most people, how can we improve our skills.
Next video on Slipper clutch and quick shifter vs normal changing of gears
The name themselves explain it clearer
@@athulskumar9361 ooh wow then the name for upside down and telescopic fork seems clearer to you! then why you go for that video
Thank you for explaining the terminologies in a simplified manner
I've seen cars jumping around even with premium suspension and being stationary, legends call them Dancing Cars 😜
how does suspension plays major role in racing? Not only bikes but cars also. Would you explain it?
Shumi I have recently started watching your videos and I am hooked !! You are probably the most sensible and knowledgeable motorcycle reviewer I have seen ! Like your philosophy and way of thinking and also your ever so sensible advice. If more bikers took your advice roads would be much safer. Respect !
Please explain engine types vs performance requirements for various types of bike such ass offroader, sports tourer, cruiser and racebikes
now this is the type of explanation done by the professionals. Loved it.
Only 2 words ....well explained
As of now my lecture is going on this topic ,i got notification about this ,left the lecture and join the powerdrift video ❤️❤️
Would you recommend after market fork covers on right-side-up forks (bike used for touring)?
Can’t hurt. But utility isn’t very high
@@shu_mar Thanks 😊 that helps
Guys please do a video on proper braking. It is something that we use 100% of the times we ride and there are a lot of misconceptions out there. I think it'll be a good topic coming from seasoned riders like yourselves.
1. How does a size of a disc break affect breaking performance?
2. How can we prevent clutch lever wobble?
3. Are premium fuels worth it (than the regular fuel)?
Great video guys. Can you please make a video on preload, compression and rebound adjustment on suspension springs.
Need a Simplified Video on Coolants please