52 mm

A combination of the other styles, tapered headsets will be used with a steerer tube that has a 1.1/8" or 1.5" lower diameter,  and a 1.1/8" upper diameter. Headsets for such frames and forks can be any combination of traditional, internal,  or integrated headsets. It is very important to accurately measure the inner diameter of the headtube top and  bottom to narrow down the headset model needed. In some cases, tapered headtubes can be used with  a straight 1.1/8" steerer tube if a reducing headset race is available for that headset. Features: Steerer Tube OD: 1.1/8" to 1.5" tapered Upper Headtube ID: 42mm Lower Headtube ID: 52mm Fork crown seat OD: 39.8mm Stack height: 15mm Angular Contact Bearings Weight: 83.4g With Top CapHEADSETTUBEROTOR FSA NO.42/ACB ORBIT C-40 1-1/8" to 1.5" IS42 / IS52 Tapered Integrate Headset A combination of the other styles, tapered headsets will be used with a steerer tube that has a 1.1/8" or 1.5" lower diameter,  and a 1.1/8" upper diameter. Headsets for such frames and forks can be any combination of traditional, internal,  or integrated headsets. It is very important to accurately measure the inner diameter of the headtube top and  bottom to narrow down the headset model needed. In some cases, tapered headtubes can be used with  a straight 1.1/8" steerer tube if a reducing headset race is available for that headset. Features: Steerer Tube OD: 1.1/8" to 1.5" tapered Upper Headtube ID: 42mm Lower Headtube ID: 52mm Fork crown seat OD: 39.8mm Stack height: 15mm Angular Contact Bearings Weight: 83.4g With Top CapSHIPPINGABOUTSHIPPING SHIPPINGABOUTSHIPPING FAST SHIPPING We will ship your orders within 1 business day upon payment received. SHIPPINGABOUT ABOUTSHIPPINGABOUT ABOUT ABOUT Rolling-Cycle The Rolling-cycle team is comprised of a number of individuals who have worked in the bike industry for many years and built up some great relationships with brands and suppliers. Our philosophy is that we work hard to find popular bike gear from the brands you love without having to pay a fortune for it. We are also proud to introduce our own range of quality accessories and tools that we have researched, sourced and tested from top quality manufacturers in Taiwan. Check out ‘ResQ Tools’ which is the first range we are introducing. You’ll find a variety of tools for both the workshop and to take with you on the road or trails to keep your bike in good shape. We are currently based in 2 locations and growing, the warehouse is located in Missouri USA and Sydney Australia. TIPSUM Super Light Magnesiem Platform with TItanium Axle Only 82g per Pedal Extra Gold Pin Include Now On Sale - Only US$53.9 SHOP NOW! Limited Time OfferWellgo BMX MTB Bear Trap Old school Bike Pedal 9/16" or 1/2" Black Blue Red Gold$28.50 - $29.50SHOP NOW!TRP HY/RD Road Hydraulic Disc Brake Set w/ 160mm Rotor x 2 - Front + Rear$145.00SHOP NOW!TRP TRP-33 MTB Mountain Road Bike 2-Piece Disc Brake Rotor 180/203mm HY/RD Spyre$28.90 - $30.90SHOP NOW!TRP SPYRE Road Bike Alloy Mechancial Disc Brake Caliper Rotor 160mm Rotor F+R$96.00SHOP NOW!2019 CONTINENTAL GRAND PRIX 5000 TLR - 700 x 25 GP5000 Tubeless 1 or 2 Tires$70.00 - $115.00SHOP NOW!Vittoria Zaffiro Pro Folding G+ Clincher Tire 700x28C/32C Tour Commuting$23.90 - $45.90SHOP NOW!Vittoria Rubino Pro Speed G+ Folding 700 x 23C/25C Road Clincher Tire Full Black$37.00 - $70.00SHOP NOW!Giant Contact Trail Riser Bar MTB Handlebar 31.8 x 690mm Alu 7075 Black 249g$19.90SHOP NOW!DT Swiss 350 Straight Pull Front or Rear MTB Hub 28H 12&15mm Thru Axle-6 Bolts$59.90 - $209.90SHOP NOW!DT Swiss Quick Release QR Skewers for Road Bike (100/130) MTB (100/135) Black$21.70 - $23.50SHOP NOW!DT Swiss 350 Straight Pull Front or Rear MTB Hub 28H Thru Axle Center Lock$64.90 - $209.90SHOP NOW!X-Fusion Manic Dropper Seatpost Internal 30.9 /31.6 Travel 125/150mm With Remote$155.00 - $165.00SHOP NOW!Still Vintage Classic bicycle LED rear tail light steel bike city bike road bike$19.90SHOP NOW!Cannondale Road Bicycle Handlebar Bar tape Green/White/Neon Orange with end Caps$19.92SHOP NOW!Cannondale Road Bicycle Handlebar Bar tape Red/Yellow/Neon Pink with Caps$19.92SHOP NOW!Cannondale Road Bicycle Handlebar Bar tape Black/Neon Red/Neon Yellow with Caps$20.17SHOP NOW! DLC Reversible Torque Wrench 1/4" 1-25Nm / 8.9-221 Inch-lb SHOP NOW! Tipsum X11SL Super Light Chain 118 Links SHOP NOW!