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SDG I Beam Seatpost
Product DescriptionThe Original I-Beam System hasThe widest range of adjustment onThe market.The I-Beam System uses a single, easy-access 6mm bolt for quick and simple adjustments or saddle changes. CATEGORY: mtb / roadFEATURES:The Original I-Beam System hasThe widest range of adjustment onThe market.The I-Beam System uses a single, easy-access 6mm bolt for quick and simple adjustments or saddle changes. 6061 cold forged aluminum head and clamps with 2014 aluminumTube.WEIGHT: 229g (27.2mm x 350mm)
User Reviews
Submitted by
BIGHaroHucker
a Downhiller
from Salt Lake City, UT Date Reviewed: April 27, 2010 Strengths: Lightweight, Extremely strong, Very comfortable. Weaknesses: None that I have experienced. Bottom Line: Expand full review >>Favorite Trail: Bobsled Duration Product Used: More than 3 years Price Paid: $120.00 Purchased At: Willamette Mountain Similar Products Used: Stock seat, WTB, Azonic Bike Setup: Haro X7, Marzocchi 888, Fox DHX5.0 Shock, SDG I-Sky
Submitted by
TimP
a Cross Country Rider
from Cape Town, South Africa Date Reviewed: January 18, 2010 Strengths: Light weight, looks and ease of use. No issues with seat coming loose, ever. Use it properly and it works perfectly. I have the SDG Bel Air SL seat whih is extremely comfortable and durable. Still 100% after 4,5 years. Weaknesses: None at all. Bottom Line: Expand full review >>Favorite Trail: The whole of Tokai Duration Product Used: More than 3 years Price Paid: $160.00 Purchased At: bike dealer Similar Products Used: WTB and other std railed saddles Bike Setup: 100mm travel specific to SA Raleigh Marathon bike with Fox front and rear andfull XT group. 
Submitted by
joejoewoodhouse
a Downhiller
from england Date Reviewed: June 26, 2009 Strengths: looks good Weaknesses: does not work, the seat keeps tilting back, even after tightening the bolt as hard as possible. after 5 times on re- tightening the bolt has now worn out and cant be tightened fully. hence the issue is now much worse Bottom Line: Expand full review >>Favorite Trail: delamere forest Duration Product Used: Less than 1 month Price Paid: $90.00 Bike Setup: cove stiffie, pike forks 
Submitted by
Glynn Preston
a Cross Country Rider
from Kettering Date Reviewed: June 4, 2009 Strengths: Light, easy to adjust Better than kore I have broke 2 of their posts to date! Weaknesses: Limited choice, harsh ride. Bottom Line: Expand full review >>Duration Product Used: 1 Year Price Paid: $120.00 Purchased At: Chain reaction / wig Similar Products Used: Various carbon & top end standard systems Bike Setup: Hummer xc, Nixon platinum, full xo
Submitted by
Bribaba
a Cross Country Rider
from London, UK Date Reviewed: April 23, 2009 Strengths: Immoveable, single bolt design. Study and light. Weaknesses: No layback available as yet. Bottom Line: Expand full review >>Favorite Trail: Epping Forest Duration Product Used: More than 3 years Price Paid: $60.00 Purchased At: Merlin Similar Products Used: Lots of different 'rails' saddles. Bike Setup: Boardman Team hardtail 
Submitted by
Bobmajob
a Cross Country Rider
from Norwich, Norfolk, UK Date Reviewed: January 3, 2009 Strengths: Light? Weaknesses: Weak bolt. Proprietary rail system. Bottom Line: Expand full review >>Duration Product Used: 3 months Purchased At: Part of a Dahon Flo Similar Products Used: Thomson Elite, Ritchey something, various unbranded Bike Setup: Wheels, handlebars, the usual. 
Submitted by
Sandlover
a Cross Country Rider
from Namibia Date Reviewed: November 19, 2008 Strengths: Light would be the only thing that springs to mind. Weaknesses: Limited Saddle selection. Because of the I-beam. No place on the saddle to put a saddlebag. This is a personal thing as I do a lot of weekday rides of around 60 minutes and don't always want to carry a backpack with me. I find it easier to "fine tune" saddle levels with two bolts as opposed to one on the side. Bottom Line: Expand full review >>Favorite Trail: Anything singletrack Duration Product Used: 3 months Price Paid: $116.00 Purchased At: Custom Build Similar Products Used: Single release specialized seat post on Stumpy and Enduro that I demoed would be the closest. Bike Setup: Morewood Shova St;DT 150 Fork ; I-9 Enduro wheels ; Forumula "The One" Brakes; All the rest Controltech and Sram.
Submitted by
Adam Hunter
a Weekend Warrior
from UK Date Reviewed: October 19, 2008 Strengths: Easy to adjust, saddle and post setup alot lighter than standard post and saddle with rails, cheap Weaknesses: None Bottom Line: Expand full review >>Favorite Trail: CYB Duration Product Used: 1 Year Price Paid: $80.00 Purchased At: Wiggle.co.uk Similar Products Used: Standard post Bike Setup: Upgraded stumpy
Submitted by
Joel
a Weekend Warrior
from Silver Spring, MD Date Reviewed: March 4, 2008 Strengths: Solid and easy to adjust. Doesn't move and the SDG seat it's a comfortable ride. No more seat rails to bend Weaknesses: Post started to bend after 3 months (27.2) but then again I am a 270lb fat dude. I have yet to find one that can hold my weight. I am sure if my frame could take a 30 mm or higher I would be fine. Bottom Line: Expand full review >>Favorite Trail: Patapsco State Park Duration Product Used: 3 months Price Paid: $40.00 Purchased At: REI (Came on bike) Bike Setup: Frame T6061 aluminum Fork FOX 32 TALAS RLC, 140+120+100mm Rear shock Manitou Swinger 3-Swinger Air Crankset FSA Afterburner MegaExo 44/32/22 Shifters SRAM X-7 Trigger Brakes Avid Juicy 7 Brake levers Avid Juicy 7 Front derailleur Shimano LX E-type Rear derailleur SRAM X-9 Head set FSA Orbit Z Bottom bracket FSA Afterburner MegaExo Rear cog SRAM PG991 11-34 Front hub Chris King ISO Rear hub Chris King ISO Rims Mavic 823 Disc UST Tires Maxxis Ignitor UST, 26x2.35 Stem Cannondale XC3 Handlebar FSA XC281A OS Seat post SDG I-Beam Saddle SDG BelAir SL Pedals Shimano PD-M520 Chain SRAM PG991
Submitted by
dez
a Downhiller
from sydney nth beaches n.s.w. australia Date Reviewed: December 10, 2007 Strengths: simple strong good design Weaknesses: I had the carbon post and have switched back to the alloy due to the amount of movement in the seat tube. No matter how much I cleaned or tightened it the post would wiggle from side to side and end up dropping. Every time i landed on the seat it would slip down really frustrating Bottom Line: Expand full review >>Duration Product Used: 3 months Price Paid: $80.00 Purchased At: mate Similar Products Used: titec ritchey Bike Setup: Cannondale judge dh code's boxxer
Submitted by
kevin
a Downhiller
from portland, oregon USA Date Reviewed: December 2, 2007 Strengths: Cool looking, great theory. Weaknesses: Everything. I built up this bike and was extremely excited about getting it out for the first time yesterday. I mean I poured my heart into this bike. Within the first 10 minutes I made one slight bounce on it and the whole top cantered back and the seat slid out and shot off the rear wheel. That being a milisecond before my manhood was shot off the rear wheel after a nice scraping by the post itself. THAT HAPPENED THREE MORE TIMES IN TWO HOURS! And yes, after the first time I really inspected to make sure every tooth was set and tightened the FU*K out of it. Like I said, this is a great looking, clean set up. IT JUST DOES NOT WORK AT ALL. Bottom Line: Expand full review >>Favorite Trail: Syncline Duration Product Used: Less than 1 month Price Paid: $40.00 Purchased At: ebay Similar Products Used: Thomson elite (switching back to, along with another seat now) Bike Setup: Mongoose EC-X 4x, Pike 454 Dual Air,Transition Revolution wheels,Azonic Nitro Cranks/Bash, Juicy 7's,Nevegal 2.35's,Funn 10 year orange bars, SIC LLc stem etc....
Submitted by
Clifford Josey
a Weekend Warrior
from Medford Oregon Date Reviewed: October 14, 2007 Strengths: Simple design, super light. Weaknesses: Can't slam seatpost as low as other designs on longer seat tube frames. Bottom Line: Expand full review >>Favorite Trail: Any Whistler black diamond... Duration Product Used: 2 Years Price Paid: $75.00 Purchased At: Bear Creek Bicycle Similar Products Used: Race Face, Salsa. Bike Setup: Bottlerocket, Switch, El Cuervo
Submitted by
John Runner
a Downhiller
from Connecticut Date Reviewed: October 7, 2007 Strengths: Light, Adjustable Weaknesses: If you sit on the seat then it will roll backwards around the pivot and drop you onto the rear wheel. I must tighten it several times per ride, and the next time I sit on it, it collapses again. It is really, really annoying. Stick with rails. Bottom Line: Expand full review >>Duration Product Used: 3 months Price Paid: $41.00 Similar Products Used: Normal seats and seatposts which my butt misses dearly. Bike Setup: 05 Stinky, few upgrades here and there
Submitted by
Doug Gage
a Weekend Warrior
from Ontario, Canada Date Reviewed: July 26, 2007 Strengths: holds seat nice and tight Weaknesses: impossible to adjust, grips the seat too tight. only takes sdg seats Bottom Line: Expand full review >>Duration Product Used: 1 Year
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