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Iwan Kemp

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Posted

Uiteindelik na baie spaar en my gunsteling Momsen SL729 "hardegat" se verkoop,is ek ook deel van die klub.

 

Die fiets is totaal ongelooflik in elke opset.Totale openbaring!

 

My grootste vrees was dat die fiets nie sou kon klim soos my hardtail nie, maar dit was totaal onnodig.Die ding klim soos 'n wafferse bergbok,en meer.Die hele fiets se ontwerp is uitstekend,en soos almal sê,80mm agter,voel beslis nie soos 80mm nie.

 

Dink ons verhouding gaan nog blom....

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Posted

Kvdp

Jou Vipa is baie mooi!

Gee bietjie die gewig en built kit?

Interesant die Momsen seatpost cage brackets, vervang een jou seatpost collar?

Enjoy!!!

Ps. Ek is jaloers

Posted

A question re the 80mm travel.

 

Is it measured at the rear axle in terms of vertical travel?

 

Reason I ask is there is not 80mm of travel at the Fox shock.

 

In terms of rear shock set up, what model is fitted to the VIPA? Fox site lists about 7 options depending on travel and none are as much as 80mm.

Posted
 

A question re the 80mm travel.

Is it measured at the rear axle in terms of vertical travel?

Reason I ask is there is not 80mm of travel at the Fox shock.

In terms of rear shock set up, what model is fitted to the VIPA? Fox site lists about 7 options depending on travel and none are as much as 80mm.

 

 

yes, it's vertical wheel travel. The shock never really has the same travel / stroke length as the frame, as there are linkages and pivots in the suspension design, that form something called a "leverage ratio"

 

The higher the leverage ratio, the more the wheel moves relative to the shock itself. 

 

For example - my Reign X has a 3:1 leverage ratio. What that means is that for every mm my shock moves up or down, the wheel moves 3mm in the vertical plane. 

 

My shock's stroke is only 57mm, but my rear wheel travel is 171mm. 

 

There are also a whole load of other calculations and factors that come into the leverage ratio of a bike's suspension design, and why a designer would choose a certain leverage ratio over another, but that's another thing entirely...

Posted

What Mayhem said. Have a look here:
http://momsenbikes.com/index.php/vipa-full-suspension

 

http://momsenbikes.com/images/frame_tech/VIPA_4.jpg

With a relatively low (by 2014 standards) leverage ratio starting at around 2.12 and ending at 1.99, this design coupled with the RISING TO FALLING CURVE can produce a plusher ride than other short-travel designs. It also means that the bike has a very LINEAR feeling compared to designs that require higher leverage to active the rear shock. Q: What does 2.12 LEVERAGE RATIO mean? A: The rear wheel needs to move 2.12mm to move the Rear Shock Shaft by 1.0mm

Posted

FAVOR TIME!

 

Any of the Cape Town Vipa'ers (Northern Suburbs would be great) not using their Stealth port willing to lend it to me till I get mine from Momsen? 

http://momsenbikes.com/media/com_hikashop/upload/thumbnails/300x300f/vipa_par25--no-22-.jpg

Posted

The Fox table refers to the travel of the damper. First table is for rear shock and second table is for the front fork. I would guess from the leverage ratio that its the 38mm version. (80 divide 2,12 = 38mm)

 

The dealer pumped the rear shock to 150psi but I am down at 100 psi and it feels pretty close.

 

Fox are known to inflate their suspension pressures a bit.

 

My front fork, I am down at 60psi.

 

I weigh 72kg.

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Posted

If anyone is having issues with the cables slapping each other or the underside of the bars, SRAM make these cool cable routing gizmos. They are hard to get in SA, but Amazon has stock.

 

I am using VELCRO cable ties (Never seen them in SA), also available on Amazon or eBay.

 

The VELCRO cable ties sort out the annoying cable chatter.

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Posted

KvdpJou Vipa is baie mooi!Gee bietjie die gewig en built kit?Interesant die Momsen seatpost cage brackets, vervang een jou seatpost collar?Enjoy!!!Ps. Ek is jaloers

Meduim raam met vol xx1,Sid xx world cup voor en Monarch agter.Remme ook xx world cup.My eerste Sram/Avid remstel en heel verbaas oor stopkrag.Ek is gewoond aan xt/slx remme,so dit verg baie om by te verbaas.

 

Wiele is my gunsteling Mavic Slr.Momsen 715mm bar en 60mm downer stem laat my stuur in regte rigting.

 

Die bottle cage mounts is ook van Momsen Design,en ja,die een vervang die seatpost clamp.Al probleem op oomblik is die agterwiel wat effe teen bottel raak op vol travel.Het dus nog een mount bestel om cage op te skuif teen post.

 

Gewig op oomblik staan op 'n skaflike 10,74 kg,met daai lekker swaar Crossmark ust bande met Stan's,Eggbeaters,en alloy seatpost wat later carbon sal raak,en bottle cages.

Posted

My Vipa build is nearly finished. Only piece of the puzzle still left is the stealth dropper. 

 

Bike was built with some "spares" from my ST-R29 SS build to get the bike up and running.

http://scontent-a.cdninstagram.com/hphotos-xpa1/t51.2885-15/10693700_1495140550750698_2033894251_n.jpg

 

http://scontent-b.cdninstagram.com/hphotos-xap1/t51.2885-15/10616799_542941319185991_1869907090_n.jpg

 

http://scontent-b.cdninstagram.com/hphotos-xaf1/t51.2885-15/10004371_548975261915681_1837447389_n.jpg

 

http://scontent-a.cdninstagram.com/hphotos-xpa1/t51.2885-15/10723865_963629673663924_423835762_n.jpg

Posted

A couple taken at Cycle Factory during and post build

 

http://scontent-b.cdninstagram.com/hphotos-xpf1/t51.2885-15/10665557_736876193033117_312167862_n.jpg

 

http://scontent-b.cdninstagram.com/hphotos-xpa1/t51.2885-15/10684302_1486358344950068_1064280230_n.jpg

 

http://scontent-a.cdninstagram.com/hphotos-xpf1/t51.2885-15/891491_935494119795343_1680895656_n.jpg

 

http://scontent-a.cdninstagram.com/hphotos-xap1/t51.2885-15/10661286_575700835892181_1472113219_n.jpg

 

http://scontent-b.cdninstagram.com/hphotos-xap1/l/t51.2885-15/10683912_269529173242754_1374899524_n.jpg

 

http://scontent-a.cdninstagram.com/hphotos-xpa1/t51.2885-15/1168364_1495836323998448_2019144744_n.jpg

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