ERW Airless tire?

Are you tired of getting punctures and just want a tire that works until you wear down the thread? Check this:

Seems like it’s a bit to hard or what do you say? Read more about the project here: Energy Return Wheel

Help lightening my Scalpel

Don’t need another bike for next year. But I need to fix my Scalpel and why not save some weight too.

Spec:

Frame: Cannondale Scalpel 2009 M, 1963g

Rear Damper: DT XR Carbon (thinking of changing it)

Fork: Cannondale Lefty Speed Carbon XLR, 1260g

Seatclamp: Token, 9g

Headset: Cannondale, 60g

Stem: Cannondale OPI 100mm, -5°, 228g (ti-bolts)

Handlebar: Schmolke TLO 680mm, 88g

Grips: bar tape, 15g

Saddle: Tune Komm-Vor, 95g

Seatpost: AX-Lightness Europa, 110g

Front Derailleur: Shimano Dura-Ace 7900, 74g

Rear Derailleur: Sram XX medium, 189g

Shifter: Sram XX triggers, 197g (including MixxMaster for R1 Racing)

Brakes: Formula R1 Racing with 160/140 Ashima AiRotor, 547g

Crankset: Cannondale Hollowgram SL with 27/42 FRMrings, 600g

Cassette: Recon ti 11-32, 185g

Chain: KMC X10SL, 234g

Wheelset: AX-Lightness Premium MTB, 1020g

Glue: Vittoria, 60g

Tires: A. Dugast Fast Bird 52mm, 1160g

Wire/housing: Shimano Yumeya, 65g

Pedals: Crank Brothers Candy 2ti, 267g

Bottle Cage: Tune Wasserträger Uni, 18g

Total weight: 8468g

The parts that are bold haven’t I yet. Is there better and lighter parts than that? Do you got some other good suggestions on what to do to save some weight but still have an awesome bike?

AC Biturbo mtb wheels

Like a Maserati but from Germany and for your bike. Not the lightest, far from cheap but cool and not so usual like a wheelset with Tune hubs and ZTRrims. Bike Ahead Composites got a all carbon fibre wheelset, a modern light Spinergy:

 

Carbon fibre wheel with Acros hubinternal. 1169g for 26″ tubular, 1269g for 29″ tubular. 1269 and 1369g for clinchers, saving 100g by getting tubulars 🙂

How it looks on a bike:

 

The sad thing about them is the price. Compare them with Lightweight for road that isn’t the lightest but very expensive. AC26 and AC29 is around 2700-2800€ depending on wheelset and version.

Tuned Lefty, saved 133g

I had a Cannondale Lefty Speed XLR that came with my bike. 1393g including ti-bolts. Then I talked to Headshok-Willy (Larry in Europe) it was possible to change the outer leg to Carbon fibre to save weight. He could do it and after a couple of e-mails I sent my fork to the Netherlands. Then they screwed up and e-mailed wrong person so had to wait almost 3 weeks until they fixed it. But today I got it back 😀 Old leg:

New fork including new needle beerings and a full service. Maybe with Air tuning kit too, haven’t checked.

And then on my scale:

So dropped 133g and became better looking. 😀 Mounted on my nice bike that misses crankarms:

And a picture on the front:

After I mounted the crankarms that should come tomorrow the bike is under 7,3kg 😀 Maybe I should change the forkboot to a nicer one if I find and feels like I have to change rear derailleur. To use a long cage with double or single ring is a bit of a fail. But but, works for now.

Ready to ride

Glued a couple of old Tufotires on my road bike yesterday to use it this weekend. 20g of glue fixed it (one pre glued rim and pre glued tires). Adjusted the gears and brakes a little today and will test it tomorrow to work and then a ride after work. 😀 So excited on how it is. Lightest road bike I’ve tried as the Evo Ultimate I have tried at work had heavy normal flat pedals. My bike:

Really bad picture with my phone in bad light, hard to get good light when you work until 20.00. So weight:

5663g

Will hang it on a scale at work tomorrow and photo it for you to prove it.

And ending with the funniest part thinking of the weight and that it is a alu frame. I got a Sram Rival front deraileur, not so light 😉

Better gearing than the old Red, same as Force but better priced and fitting black colour.

1×9, kedjestyrartips

Geoff Kabush började, Adam Craig följde efter. Ingen av de har haft så snygg stil på cyklarna men även Julien Absalon följde efter.

Trenden växer, minska storklingan fram lite till och kör bara en klinga. Slippa alla sega växlingar fram samtidigt som man kan få en ultimat kedjelinje. Den första kedjestyraren som Adam Craig sågs med såg ut som ett hus, tillverkarna har utvecklats sen dess. MRP som ledare med en specialstyrare för Absalon och kanske fler som satt i sadelröret. De vi vanliga konsumenter kan köpa sitter i vevlagret och ser ut så här:

MRP 1.X väger in på 62g och kostar ca 409kr ifrån CRC.

Nästa styrare fungerar på samma sätt och sitter på samma sätt. Men kanske lite snyggare beroende på smak men i alla fall 6g lättare och väger in på 56g.

e*thirteen XCX heter den och kostar också ca 409kr ifrån CRC.

Men 56g för en så lite grej kan kännas mycket, att beställa ifrån Nordirland krångligt eller dåligt för miljön med långa transporter. Lösningen kanske kommer inom kort när Mattias Hellöre utvecklat färdigt. Förra året kom han med en prototyp som Henrik Öijer körde med på Marathon SM och som senare Oscar Ekstam köpte/fick och modifierade till sin cykelcross. På Oscars cykel såg den ut så här:

Vägde in på 35g eller om det var 25g. Ryktet säger att den ska bli bättre och att det ska bli mer som MRP/e*thirteen med något under kedjan också. Kanske kan Mattias kommentera det själv här.