Mtbr's 2016 Winter Biking Gear Reviews and Roundups





Sunline V-One Reducer Headset

1.5/5 (8 Reviews)

Product Description

  • Patent pending design that will not come loose under hard impacts
  • Lowest stack height for long travel forks
  • 18mm cup depth strengthens head tube

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Reviews 1 - 8 (8 Reviews Total)

User Reviews

Overall Rating:5
Value Rating:5
Submitted by Veruckwolf a Weekend Warrior from Tenino, WA

Date Reviewed: June 6, 2011

Strengths:    Low profile, no slop, smooth as butter and yes only 10 minutes to instal.

Weaknesses:    None so far

Bottom Line:   
Great headset! I don't understand the deal with this being hard to instal, you do need a good press to do it right... it took literally 15 minutes. I haven't tried to remove it so I can't speak on that but I can see where it would be tough if you didn't do it in the correct order. On the trail this thing rocks so I'm going to have to think that anyone having problems with it just didn't instal it correctly. It's every bit as firm and smooth as my Chris King and it won't blow off if you hit hard. I recommend this headset to anyone that needs a bad A$$ AM to DH headset they cant destroy... Just have a pro put it in if you're not mechanically inclined... Definitely 5 chillies.

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Favorite Trail:   Green Line Six

Duration Product Used:   Less than 1 month

Price Paid:    $12.00

Purchased At:   Jensen

Similar Products Used:   Chris King, Diacomp, Ahead

Bike Setup:   Turner 5 Spot, XT derailleurs, Raceface cranks, Mavic Crossride wheels

Overall Rating:1
Value Rating:1
Submitted by RoboS a Weekend Warrior from Bratislava

Date Reviewed: January 20, 2011

Strengths:    None

Weaknesses:    Difficult to mount. Headset is too tight, hard to turn. Read the bottom line for all weakneses.

Bottom Line:   
The wors headset ever. Turning the handlebars was hard as the heaset bearings were too tight. This did not change after 3 months of riding. Servicing the fork was also problem because everything here is press fit, so you need to hammer the fork out of the headset. Then I found that there's a play on headset, but I couldn't find where because I felt it only on big impacts. Bearings were tight as hell, so I kept searching and foud the play comes from crown race. I immediately bought Cane Creek XXCII headset and problems disappeared. I didn't even want to warranty the Sunline because it's poor concept, poor quality and I don't want to see Sunline component on my bike again.

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Duration Product Used:   6 months

Similar Products Used:   Cane Creek XXCII, Acros Ai-25, FSA Pig DH Pro

Bike Setup:   Transition Bottlerocket, Fox 36 Float RC2, DHX5, Magura Louise BAT, Transition Revolution 32 wheelset

Overall Rating:1
Value Rating:1
Submitted by slcrockymountainrider a Downhiller from Salt Lake City, UT, USA

Date Reviewed: June 18, 2009

Strengths:    Looks good in the box.

Weaknesses:    Probably the worst designed headset ever known to man. I've never seen instructions that ask for emery cloth and a hammer to install a headset. I've also never seen a headset where you have to press the bearings into the actual cups. It doesn't work. Like others have mentioned, the tolerances are way too tight. I installed it, never rode it as it was already binding up and took a hammer and knocked the POS out of my bike.
The crown race is so enormous, thick and tall, I'm not certain how it could actually function on a mountain bike.

Bottom Line:   
Don't buy it. 661 no longer sells this headset, or any other headset on their website. That pretty much sums it up. Sunline needs to stick with bars and stems which they do really well. Anything more complicated than that is just way over their heads right now. This never should have made it past R&D.

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Favorite Trail:   Anything dry

Duration Product Used:   Less than 1 month

Price Paid:    $50.00

Purchased At:

Similar Products Used:   Cane Creek XX flush mount.

Bike Setup:   '09 Intense Tracer VP with a Float 36RC2.

Overall Rating:1
Value Rating:1
Submitted by deanbling a Weekend Warrior from San Diego, CA USA

Date Reviewed: April 8, 2009

Strengths:    Absolutely NONE

Weaknesses:    The fact that this POS exists

Bottom Line:   
The review below on this headset is absolutely true. LBS actually managed to install the first Sunline V 1 reducer headset but after sitting for a day it had bound so tightly that the it would barely turn. Then it was nearly impossible to remove, the only way to remove it was to completely destroy it, no joke. 3 more attempts at installation with 3 more fresh out of the package Sunline Reducers and no dice. A hammer is not a tool that should be used when installing a headset and the directions actually say you may need one! I really like the Sunline Bars, Grips and Stem on my new bike but WOW, this reducer headset is garbage! If you like to beat on your bike with a hammer and ding up your fork and headtube this headset is perfect! I bought a Chris King Devolution Headset and could not be happier with it.

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Duration Product Used:   Less than 1 month

Price Paid:    $49.00

Purchased At:   Bikebling

Similar Products Used:   Cane Creek, Chris King Devolution (worth the extra $$)

Bike Setup:   Banshee Rune XL, Manitou Evolver ISX-6, Marzocchi 55 ETA, XT 770 shifters, F&R derailleurs, Hayes Stroker Trail brakes, Truvativ Holzfeller Crankset, Chris King Devolution Headset, Sunline V1 Bars, Sunline 1/2 Waffle Grips, Sunline V1 All MTN Stem, Azonic Outlaw Wheelset, Kenda Nevegal 2.35 tires

Overall Rating:1
Value Rating:1
Submitted by klivic a Downhiller from Honolulu, Hi

Date Reviewed: January 30, 2009

Strengths:    absolutely none, can't fit it.

Weaknesses:    Super tight fit. Instructions are ridiculously unrealistic, talking about first doing a measure fit so that you can cut the steer tube, but you can't even fit the seat tube through the bottom bearing. Instructions actually say "Press the crown race into place on the lower bearing. You may actually hear it snap together. In most cases the fork will be supported by this interface, but do not rely on it....A small tap with a rubber mallet may be necessary to unseat the crown race from the lower bearing." You can't even get the crown race to seat onto the bearing without massive hammering!!

Bottom Line:   
Don't get this unless you like to beat on things with hammers. Ahhh!!!!, I wish the bike shop would have speced what I had actually ordered which was the FSA Orbit reducer headset. They sent me this and I decided to try to make it work, big mistake! I have black rubber mallet marks all over the under side of the crown of this beautiful new Fox 36 Float. And still can't get it to fit! Didn't even make it to the top bearing and reducer collar! I got so much vindication after reading the other reviews here. Wish I would have read these earlier. Super bad experience with this headset. I racked my brain and hammered my bike way too much today! I want to call Sunline and biych them out, I was soo pissed.

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Duration Product Used:   Less than 1 month

Price Paid:    $46.00

Purchased At:   online

Bike Setup:   1.5" Head Tube Transition Syren

Overall Rating:1
Value Rating:1
Submitted by philipstonier a Downhiller from vancouver bc canada

Date Reviewed: July 22, 2008

Strengths:    cheep reducer headset, i actually got a good deal on it becausethe shop decided it wasnt woth the $70 i think it retails for

Weaknesses:    the bearing suck and also everything else about it

Bottom Line:   

please dont waiste youe money on this

Expand full review >>

Favorite Trail:   north shore

Duration Product Used:   Less than 1 month

Price Paid:    $40.00

Purchased At:   peninsula cycles

Similar Products Used:   i dont think there is anything else as bad

Bike Setup:   devinci wilson with some top of the line parts, excet the headset

Overall Rating:1
Value Rating:3
Submitted by Sodak a Downhiller from Virginia

Date Reviewed: April 24, 2008

Strengths:    Hmm.... not sure about this one. It is a reducer headset. Super deep cup insertion.

Weaknesses:    Just too damn hard to install. The tolerances are too tight. Alot of pounding with a dead blow hammer to install. Too afraid to try to uninstall. Too alot of "persuasion" to get on. After the first ride, the headset squeezed together a little more and I had to tighten the top cap. This headset is kind of a beast, the most difficult headset I have ever, ever, ever, installed. I do not feel it is worth it for the average rider. If you have a sponsored team who fixes your rig, then go for it.

Bottom Line:   
This headset is way too difficult to install, and I do not even want to think about taking it off.

Kinda spendy for the amount of work that goes into install. Everything is press fit on this headset. Press the cups in, press the bearings into the cups, bang the hell out of it to seat the bottom race. Too much work, IMO

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Duration Product Used:   3 months

Price Paid:    $80.00

Purchased At:   BTI

Similar Products Used:   Cane creek, FSA,

Bike Setup:   08' Bottle Rocket, 07' 66 RC2X

Overall Rating:1
Value Rating:1
Submitted by Craig a Weekend Warrior from LONDON

Date Reviewed: November 26, 2007

Strengths:    cheap

Weaknesses:    cheap and tolerances are way to tight

Bottom Line:   
Do not buy this product is you value your bike. If it does eventually fit you will never get your fork back out of your frame. I have never seen a head set with tolerances this tight. Very badly designed.

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Favorite Trail:   morzine pleney

Duration Product Used:   Less than 1 month

Price Paid:    $70.00

Similar Products Used:   FSA orbit xtreme pro 1.5, fsa orbit xtreme pro 1 1/8

Bike Setup:   cannondale gemini DH, rockshox boxxer WC

Reviews 1 - 8 (8 Reviews Total)

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