Page 26 - 2018-v.3-Part 2(EN)

Table 7 — Wheel/tyre assembly — Concentricity and lateral tolerance

Dimensions in millimetres

City and trek- Young adult Mountain
Bicycle type king bicycles bicycles bicycles Racing bicycles

Intended for
Concentricity and rim-brakes
lateral tolerance Not intended 0.8 0,6
for rim-brakes

4.10.2 Wheel/tyre assembly — Clearance

Alignment of the wheel assembly in a bicycle shall allow not less than the clearance values given in
Ta ble 8 between the tyre and any frame or fork element or a front mudguard and its attachment bolts.

Table 8 — Wheel/tyre assembly — Clearance

Dimensions in millimetres

City and trek- Young adult Mountain Racing
Bicycle type
king bicycles bicycles bicycles bicycles
Clearance 6 6 6 4

NOTE Where a bicycle has a frame or a fork with a suspension system, the values in Ta ble 8 apply to the
suspension system in its uncompressed state. Clearance requirements for the frame or fork under a load are
specified in TBIS 4210-6:2017, Annex C and 4.9.3.1.

4.10.3 Wheel/tyre assembly — Static strength test

When tested by the method described in TBIS 4210-7:2017, 4.2, there shall be no failure of any of
the components of the wheel, and the permanent deformation, measured at the point of application of
the force on the rim, shall not exceed the values which are given in Ta ble 9.

Table 9 — The values of permanent deformation

Dimensions in millimetres

City and trek- Young adult Mountain Racing
Bicycle type
king bicycles bicycles bicycles bicycles
Permanent 1.35 1.35 0.9 0.9
deformation

4.10.4 Wheels — Wheel retention

4.10.4.1 General

Wheel retention safety is related to the combination of wheel, retention device, and drop-out design.
Wheels shall be secured to the bicycle frame and fork such that when adjusted to the manufacturer’s
instructions they comply with 4.10.4.2, 4.10.4.3, and 4.10.5.

Wheel nuts shall have a minimum removal torque of 70 % of the manufacturer’s recommended tightening
torque.

Where quick-release axle devices are used they shall comply with 4.10.5. And the quick-release devices
nether loose nor fastening are not cause interference in the running wheel assembly at bicycle complete
assembled state.

18